When looking at the overall combined weight for the “coupled”, “leveled with airbags”, and “weight distribution” setups - the resulting totals were 11,695, 11,715, and 11,720 lbs. The difference in these numbers is attributed to the precision and accuracy of the wheel scales that we used and is within 0.2%. Being within 0.2% when the precision/accuracy errors of 8 different scales are added together is quite good - especially for our purposes in this demonstration of general principles. Admittedly however, there are some typos and a mistake in the numbers shown which do account for some discrepancies. One of the mistakes is with the baseline trailer axles number which then carries through in the math throughout the video. With the trailer uncoupled we used an additional scale under the jack when measuring the tongue and axle weights. There is a conversion that then needs to be done to get the exact weight at the hitch ball coupler location. We used the converted (actual) tongue weight of 1000 lbs. in the video but forgot to use the converted axle weight. So, the uncoupled or baseline trailer axle number given is 70 lbs. less than the actual. Also, we didn’t add the weight of the spring bars (35 lbs.) to the uncoupled total. With these two corrections the “uncoupled” combined weight should have been 11,690, only 5 pounds different from the “coupled” combined total. The additional discrepancy is due to the precision and inaccuracy of that tongue weight scale that we used. At minute 12:17 in the video - the correct increases to the trailer axles should be 295 lbs. for weight distribution (instead of 365) and 55 lbs. for the airbags (instead of 125). For the airbags, that trailer axle difference should theoretically be zero when leveled. The reason it’s not is due to the trailer not being at the exact same level/angle and the scale precision/accuracy. As the trailer tips down in front then the front axle of the trailer will take a slight bit more load from the tongue weight. In the weight distribution example, some of that weight difference would also be from the trailer angle and scales then also some from spring bar weight. The majority (~250 lbs.) is from the forces of the bars on the trailer for weight distribution. In spite of some unfortunate presentation mistakes in the video, those errors only affect the magnitude of the effects which will be different for each towing setup anyway. The general principles remain the same - 1) Even though airbags are good for vehicle leveling and ride comfort, they do not distribute weight off the rear axle back to the front axle nor achieve all the towing benefits that come with weight distribution and its inherent sway control 2) Weight distribution increases front axle weight for improved steering and handling and also alleviates the weight and stress on the rear axle of the tow vehicle 3) Because weight distribution also levels the vehicles, airbags usually are not necessary when using a weight distributing hitch. Final note, airbags or auto-leveling can be used with weight distribution to improve ride comfort if desired or if auto-leveling cannot be disabled on the vehicle. Keep in mind that increasing airbag pressure or auto-leveling after setting the hitch will decrease weight distribution. Measure the amount of weight distribution after leveling the vehicle and adjust the hitch as needed to maintain the appropriate amount of weight distribution. Refer to the following video for more tips on adjusting your hitch when using airbags or auto-leveling in conjunction with weight distribution - ruclips.net/video/mj2oqAiltsk/видео.html.
Well thank you, I just cancelled my air bag installation at a workshop 30 mins ago based on this video because the RV dealer has installed an expensive, higher weight rated Reese WD hitch on my new 31ft travel trailer which weighs 7600Lbs loaded. I think I'd better stick with the science and data shown in this video than having both airbag and WD combined because it won't help at all. A solid educated decision made and thanks to your video for that.
I’m thinking of getting airbags for my 1500 Sierra but I have one question, when not towing do those airbags running on 5 psi make your ride quality worse? I’ve heard the ride quality is very bouncy when not towing.
I’ve discovered the air bags and WD hitch working boy together works great together. Now I have upgraded the braking on my truck on all 4 wheels and on the trailer brakes.
I made a video explaining that if you have a heavy pulling vehicle and a light trailer, you should NEVER use a WD hitch because weight will distribute from pulling vehicle back to the trailer. Keep in mind, some small travel trailers can only accept #500 of cargo. Therefore a WD hitch can be a bad thing in some cases. I got called a liar and many other terms, even though my info came from Reese Hitch engineer. I am so glad an engineer is testing it right in front of everyone's eyes with scales and tape measures etc. I do my best to educate others and get educated myself. Thanks for the video, it is very informative, and clear! This video clearly shows a WD hitch can send weight to the trailer axle causing it to be overloaded.
This is kind of a complex principle to explain, but we’ll do our best. You are correct that in theory it is possible to overload the trailer axles when using a weight distribution hitch, and that it is more likely to happen with a smaller trailer having a lower gross vehicle weight rating (GVWR). However, this could only happen in practice if the weight distribution hitch has been set up to be over-adjusted. In this scenario, the hitch would have to be set up in such a way that enough weight is being lifted off of the rear axle of the tow vehicle that the portion of this weight NOT being therefore carried by the front axle of the tow vehicle, when added to the trailer’s gross vehicle weight (GVW) would cause it to exceed the axle rating. For example: a trailer with a GVWR of 3,000 lb, loaded close to capacity at 2,900 lb, with the hitch adjusted in such a way that it is lifting 600 lb from the rear axle of the tow vehicle, where 400 lb of this weight is then carried by the front axle of the tow vehicle, and 200 lb is carried by the trailer’s axle. In this case, the GVW of the trailer at 3,100 lb would exceed the GVWR of 3,000 lb. You can see by the example that this would be a difficult and unlikely scenario to achieve, though it is possible to achieve. Thank you for watching, and for the thought provoking comment! We’re glad it was helpful for you.
I used both. Firestone air and equalizer weight distribution hitch on a 09 RAV4 v6 wtp. Towing 3500lb. Set up by RV company. Handled beautifully on 5900 mile trip. No sway handling problems. Car and trailer are level. Very happy with rear view camera set up while towing also.
Painstaking review that took the time to prove results by weighing the vehicle AND trailer. No one does that. I’d have guessed the airbags would be superior but the much less expensive distribution hitch clearly came out on top. I pulled a 22’ work trailer with the distribution hitch and I could barely feel it back there. I had to check my rear view to see if it was still there. 👍 Great job guys!
Excellent video dispelling many myths and urban legends. This is perhaps the BEST video made on this subject and is truly very much appreciated by all who watch it. Thanks for taking the time and making the effort to clarify one of the most stubborn questions out there. Very nicely done guys. Thanks again .
Great video. I really would of loved to see the numbers at the end if you would of filled the air bags to get the rear back to "zero"level with the using both to together.
The more you use the air bags to raise the rear the more load it takes off the weight distribution hitch. Therefore, it reduces weight on the front axle and increases weight on the rear axle. Check out this follow up video for more numbers and details - ruclips.net/video/mj2oqAiltsk/видео.html.
@@jasonh2832 properly set up, the wd, then yes you could finish off the leveling with air suspension, however this will require a different set up of the wd. It will need to be about one link tighter. Your weight distribution will be the same, you'll loose that 1/4" squat, and the ride will be smoother. I'm a proponent of using both. Along with Timbren stops to smooth out hard bumps, and reduce roll. And don't forget good trailer brakes too.
Weight distribution hitches are great but I have air bags because Weight distribution hitches don't do anything for me when I am NOT towing and I have my truck bed full of dirtbikes or construction supplies.
Very scientific, I just priced your intercomp wireless scales kit at $9,918.00. Thank you for making this video We appreciate your dedication and professionalism. I would’ve liked to have seen you move the weight in the trailer back and forth and see the difference and also with the weight directly above the axles.
I haul different types of RV's so i need both air bags and bars. When i pull a TT i use bars mostly when weather is good but in winter driving i lighten the bar load and put more on the air bags... i like more weight on drive axle. Also, some jurisdictions require equalizers. What i like about the air bags is that the handling is better with less sway. This is great info especially for someone that pulls the same trailer(s) regularly.
@@josephbrockman5715 I had bags first for the weight I carry in work tools so every trailer over a certain weight needs by law for distribution set on the trailer just like tow mirrors are law for length .. like ol' boy said best of both worlds.. I still need to dial in the distribution bars torsion then dial in the bags ...
A great demonstration of the value of WD vs Airbag. Having just moved from and F250 to an F350 Dually, my first tow without WD was very disappointing! Adding the WD was a game changer. Thanks for explaining why!
I retired as an engineering manager from one of the popular air bag companies. I was pretty nervous about where you were going with this, but I say bravo and well done! Air helper springs do not solve weight distribution problems, and WD bars do not solve the problem of sagging springs. Unfortunately, both industries advertise differently. I want to comment on the application of the air springs.. when the air is pressure is proper, the frequency of the bouncing will be acceptable to the driver and passengers. A slow deep bounce means under inflation. A fast harsh bounce/ride probably means over inflation. It requires trial and error to find the correct combination of air pressure and adjustment to the WD bars. Another point I want to drive is that the air springs must not be carrying the full weight of the load..it will create undo stress on the frame and an unbalance suspension. Always readjust the WD bars after adjusting the air pressure, and vise versa. Once you figure it out, you should be good unless you make changes to the load ie: you put your motorcycle in the back of the truck, etc. thanks!
Thank you so much for the comment, especially the great advice on getting the proper pressure in the air bags for the best ride and the caution about carrying the full load, as we get a lot of questions about the air bag inflation in the comments here. Thanks for watching, and please, feel free to weigh in again anytime!
I was just gonna ask if you used both how that makes a difference if you use the airbags with the weight distribution hitch what does that do you know the guys should do a video on that as well.
Good video, you addressed each system but you never addressed using the two together I have an F250 that doesn't have overloads and I'm using airbags as overloads I'm planning on towing a trailer with a slide in camper on my truck can I or should I use weight distribution and airbags?
The best explanation I've seen. I've done the same measurements when working for a car manufacturer here in Australia years ago. The measurements don't lie, but you can argue till you're blue in the face with people who think that just levelling out the tow vehicle is what it's all about. Great work guys.
Great video! Your demonstration was exactly what most people want to see to be able to understand weight distribution and that air bags aren't the easy solution!
Thanks Bernard Woods! It is our hope that having access to good towing information helps people make informed decisions to keep themselves, their families, and their equipment safe. Thanks for watching!
Not sure why we have negative comments on here. Test was simple and proving a particular point. I am sure you could have done a video an hour long to go into airbag/distribution bars combo.....tire pressure changes needed for proper handling on trailer and tow vehicle..... and proper trailer loading. Thanks for the video.
I have both as well. Recently purchased a 29' trailer (4600 lbs empty) to tow behind our beautiful 2004 GMC Envoy XUV XLT (89,000 miles on odometer, bought in new) which is rated to pull 6400 lbs. It has airbag suspension (I replaced the airbags two years ago), and installed an Equal-I-zer WD and anti sway hitch. The Envoy does not sag at all and rides so well I can't even tell I'm pulling a trailer. Nice.
Typically any load on your hitch over 500 lbs should be done with a Weight Distribution Hitch. This is true for most class 3, 4, 5, etc hitches From there, you should be adjusting the height of your hitch ball on the WD platform to make your trailer level. The truck's rear suspension will sag a bit, but it is fine. If you want to remove the sag, and improve front wheel handling and stopping, and lower your headlight beams, then you should add airbags to remove the sag from the rear of the vehicle. After adding the air bags, you will likely need to lower your hitch ball height on the WD platform so as to keep your trailer level. Airbags are not a replacement for WD hitches! I run both. WD hitch is a must. Airbags only improve from there.
Thank you! This video has saved me $900 for an air bag installation. I am purchasing my second RV and putting the best WD Equal-i-zer hitch available for our truck and RV. I had considered both actually to compensate rear axle stress and sag. My suspicions are confirmed, a properly installed WD Hitch (i.e. your video on installation and importance of measurement) will be sufficient.
I was wondering if you have ever done that same type of analysis using a WD hitch and airbags at the same time. I would be very interested in seeing the results from that setup. Thanks. Great video by the way.
Thanks for your response! We don't normally recommend using both air bags and a weight distribution hitch together. The air bags can counteract the weight transfer that the WDH is giving. Using air bags to raise up the back end of the tow vehicle will decrease the amount of tension placed on the hitch, which determines how much weight distribution and sway control you will get. So, raising the rear of the tow vehicle to eliminate squat will reduce sway control.
This has got to be the best comparison video I've found. I was looking to get airbags installed for my camper, but after this video, I don't think I'll waste my money if my weight distribution is going to do a better job at keeping my weight shifted.
I'm surprised that some people still think of it as an either, or question. Especially when the two options were developed to solve two different problems; and neither was intended to increase payload capacity. Weight distribution hitches were designed to help redistribute some of the weight between the tow vehicle and the trailer, in a way that improves overall safety and handling when towing. While they may help to some degree with sag, that's not the intended purpose. Air suspension systems were designed to provide a solution for sag, as well as improve ride comfort. Using it to redistribute weight isn't at all appropriate; and as the demonstration shows, can even be detrimental. It just makes sense to consider using both, because together they solve multiple problems simultaneously, without hindering performance, or safety.
I was just thinking this. Would have been nice to have seen the WDH set up and then use the airbags to get back to the optimal ride height. What would that have done to the weight distribution according to the scales. Oh well!
Thank you! This is much needed. Too many are quick to say air bags, which from my research are not the answer but a bandaid to sag and not weight. Your test affirmed that and proved what works and what is merely a superficial fix. Glad I bought a WDH.
I tow 4000lbs, with a Rav4 V6 w/tow package, air bags and weight distribution hitch. Proper tires. No handling problems in storms, high winds and passing semi trucks, in 6000 miles.
I'd be interested in seeing the numbers with the trailer loaded and not just to get a tongue weight. For a properly loaded trailer to have a 1k lbs tongue you should have an additional 8500-9k lbs of cargo and trailer weight.
This was.very helpful to me as I bought a toy hauler today and am pulling it with an 06 Jeep Grand Cherokee with a 5.7 Hemi. The power is there but the tongue weight is very heavy for this vehicle. The dealer suggested air bags or a WDH but wasn't sure which one was best. Now I know. Thank you so much.
Thanks for the post! I wondered how the weight distribution system worked. We sold our motorhome and are buying an RV trailer, so I'm viewing all the videos like yours. 👍😎
Excellent video guys. I have a Ford F-350 equipped with air bags and I tow a 10000 pound bumper pull trailer. I’ve been having a problem with the sway bar system not doing its job as I am using a combination of both air bags and the equalizer hitch. Based on what I watched in your video I’m going to try just the equalizer and not the bags to see what happens. I’ve got a truck scale not far from my place so I can get some axle weights as well. Thanks, keep it up.
Awesome and detailed video, and particularly useful in explaining why air bags alone don't help much. In my experience towing with a minivan, air bags reduce vertical motion when going over dips, and spare the rear suspension some travel. However, there are negatives with air bags that aren't as frequently discussed: they make for a more jarring ride by passing more road vibration to the vehicle and hitch assembly, and the fundamental issue with dramatically different axle weights between rear and front remains unchanged. Thanks!
I've used the chain WD hitch for years on a construction trailer on short wheel based vans with the friction anti swaybar. On Long wheel trucks I did not need the sway bar. Got use to the chain adjustment fairly easily. When setup properly towing is a pleasure. I just bought a new enclosed cargo trailer and the old Huffy would not fit. I would need to cut holes in the floor to link the chains up. Bought a newer style WD hitch setup called a Curt True track #17499 WOW what a pleasure to tow with this! It has square spring bars that allows shorter placement of trailer frame clamps. And this system doesn't use chains. So the anti sway is built-in to the product.
Before.....and then after I bought a weight distribution hitch, I found myself on a stretch of highway that undulated up and down in a very consistent rhythm for about a half mile. The first time through, my camper and suburban did a hobby-horse motion that amplified quickly and made me do the upholstery clench until the brakes broke the rhythm. Next time through with the new hitch, truck and trailer acted as one unit, straight and calm.
This is an excellent video and addresses the issues I’m having with my set up. I have a short-bed Ford F-350 and I carry a Honda Pioneer 500 UTV (1100 Lbs), which drops the bed 2 1/2”. When I hitch my 25’ trailer, which has approximately 900 Lbs tongue weight, the truck bed drops an additional 1 inch or more, making it very difficult to engage the weight distribution arms (Reese Stedi-Flex), even when raising the trailer tongue jack to the max height. The result was that the front suspension dipped below the stock height causing a very scary and unstable to tow driving experience. Today, I will be installing a set of Firestone airbags and I hope to bring the UTV-loaded truck bed back to near stock height; hopefully, this will allow me to engage the weight distribution to the proper setting where the front suspension of the truck will dip to near unladen height leading to a more stable and safer towing.
Airbags not smart, take WDH to dealer for install, then CAT scale, you don’t know proper install because rear sag not relevant, front axel rise is, once WDH on should bring rise down 50%, airbags make worse because increases drive axel weight
I wish you would’ve done a third test that showed what happens when you use both the airbags and the weight distribution bars. Many of us out here have both and it would have been nice to find out if when used in tandem completely distribute everything evenly the way it should be.
Thanks for the comment. Towing with both is a great way to go. We have received the request for a video covering this from a number of people. It is a video that we are working on, and hope to have released soon. Our advice is to set the air bags to the pressure you want to tow with. Then, set up and adjust your weight distribution hitch to get good weight distribution. You may need to make minor adjustments to one or the other, or both, to get it dialed in. Remember that adding air to the air bags after setting up the hitch will usually reduce the amount of weight distribution, and removing air will usually increase the amount of weight distribution.
I just got back from a CAT scale and performed this experiment with my setup. My tow vehicle was a 6000 lb Tundra and my 32' trailer was 7000 lb. My base front axle weight unloaded was 3360 lbs and it dropped down to 2980 lbs (-380 lbs) loaded without WD. My base front axle weight was 3200 lbs with the WD bars engaged and 5 psi in my air bags. With the air bags at 20 psi, the front axle weight decreased to 3160 lbs (-40 lbs). With the air bags at 35 psi, the front decreased to 3140 lbs (-60 lbs). I took these weights with a half tank of gas and I was the only passenger. I am going to go back sometime with a fuel tank of gas with the family loaded up. Just remember that the more pressure you have in your airbags, the less tension there will be on your WDH's spring bars. Everyone's setup will be unique, but I'd thought I'd share mine. @FastwayTrailer What's a good target weight to distribute back to the front axle? At least 50 percent of the difference between the unloaded base weight and loaded weight w/o WD? I was able to achieve 58% at 5 psi and 47% at 20 psi.
Thanks for your fantastic comment. Thanks for sharing your real life numbers with us. The ideal target for weight distribution for a specific setup is a hard thing to state definitively because there are so many different factors in play, such as tow vehicle size, suspension type, spring rate, trailer weight and suspension, distances between axles and hitch ball, etc. As a general rule, we recommend getting at least 50% (halfway) back to the unloaded baseline. Therefore, in your example above, your vehicle went from 3,360 lb on the front axle to 2,980 lb (-380 lb) with the trailer coupled. Halfway back would be at least 3,170 lb (3,360 - 380/2) on the front axle. Best case would be to get 100% of the weight back. We would consider a front axle weight anywhere between 3,170 lb and 3,360 lb good weight distribution. As such, if you are towing with 5 psi you would be in the good weight distribution range. If you are towing with 20 psi, you should consider making an adjustment to your hitch to increase the amount of weight distribution it is providing. There are some cases where getting 100% back is not realistic. This is sometimes the case when you have a longer heavy duty pickup with very stiff suspension. In this situation, getting at least 50% back is good, and somewhere between 65% and 75% back is ideal.
@@FastwayTrailer Thanks for the reply. I think I have a good starting point. Camper and truck were partially loaded during this weigh in. I still have to add the family and gas which should add another 500 lbs to the truck. I'm curious to see how much more of the weight is distributed to the front with more weight in the truck. I'm also hoping I have more adjustability to the air bags with the truck fully loaded.
You’re welcome. Sounds like you have a pretty good handle on things. We expect that you will see pretty much the same thing, even with the added weight in the truck. That added weight will increase the baseline axle weights, but when you add the trailer, you will still counter-balance out about the same weight. You should see a very similar increase at the rear axle, and decrease at the front axle. Of course, adding weight to the trailer will change things a bit too. Let us know what you find. Good luck and safe towing!
Excellent video on a ,at least for me,confusing topic. I now have a solid understanding of the differences between the two. Thank you for a clear,concise video!
This was so helpful. We are going to be buying a trailer to tow with our Ram 1500 4x4. This illustrated weight distribution in a way I could understand it!
Now THAT was terrific video with actual data and evidence!!!!! (I am a Lean Six Sigma dude so I love solid evidence!) I am grateful for the information as I have a smaller truck (2019 Tacoma) with which I will pull a travel trailer (4400# dry). Yes, I know that a bigger truck tows more but frankly I also want a daily driver when I'm not towing. I currently have a WDH and was wondering why all current interest in Air Bags (fad??)....this video clarified it fully...Very well done and explained....No further questions from me. I will make sure my load is properly balanced and my WDH is set well. YOU GUYS ARE JUST PLAIN AWESOME!!!!!!
Ive heard with bags getting frames bent cause they mount in a 6 inch space vs the springs mounting say 3ft away from each mount on the frame. Also if you look at big rigs they have bags in one place but the axle mounts to an arm for the bags and still has its other end 2 ft away
Great video to illustrate each system's attributes. I have a GMC Sierra 1500 with a ~7000lb TT. I have both the Equalizer. and the Air Bags (Firestone). This combination works very well for me. The WD hitch does the brunt of the work, and I use the air bags mostly when driving at night to level the projector headlamps (if needed). The airbags do aid in uncoupling the hitch as well, especially if on rough terrain (to lift up the rear of the truck). I have almost NO sway issues (so happy!). Thanks! Garry (Ottawa, Canada)
The best part of this comment section is all the critical (smart ass) commentary being met with inarguable physics and substantive demonstrations leaving the arrogant know-it-all with no further debate.
Air bags are ABSOLUTELY NOT a replacement for weight-distribution hitches! You may not sag in the rear, but you're still pivoting that weight onto the back axle and OFF of the front...the STEERING axle. Amazes me how many stupid people are towing shit around, an accident waiting to happen. You're the first guys to actually provide an accurate, in-depth informative explanation of how to properly, and SAFELY, set up a trailer and tow vehicle. I hope this video saves someone from a ruined vacation or worse! Truckers are regulated til there's nothing left, while the general public and RV dealers can hook anything to anything with zero accountability.
Thanks, Dave and Jason for helping to explain the difference and summarizing the effects of both systems. After reading many of the comments below, I see the intent to show a basic comparison was missed by those wanting you to replace their common sense in setting up a specific rig. Your setup was to help us make good decisions. I will be copying Thomas H's example and use both.
+Christopher Harwell, Thanks for watching and chiming in. You are correct, we wanted to show the principle so that those setting up their rigs could have more information to be able to make a good decision for themselves. After you get yours set up, come back and let us know how it goes.
I use both an Equalizer WD hitch and an airlift wireless system on my f150 when I tow my camper, have used this configuration on several trucks now. The beauty is that as the tongue weight of the camper changes (full water on the way up the mtn vs. empty on the way down), I was able to find a WD setup that works in both scenarios without adjusting, simply by adding a bit of air to my bags for less WD, and letting some out for more (I know, sounds backwards, but it's not). The other nice thing about this is when heading to Elk camp in the fall, climbing steep dirt roads, if I need a bit more traction on the rear wheels, I can add air to the rear bags on the fly in seconds, which reduces WD and puts more weight on the rear axle, and on the way down the mountain when I want a bit more weight on the front axle for better braking and steering, I air the bags down all the way, which increases WD. The difference is VERY noticeable. I recently gave the 150 to the wife and got a 350, as I need to be able to tow heavier trailers for my company, and I installed the same setup on it. Even on the 1 ton, the benefit of having both the Equalizer brand WD hitch AND the bags with wireless control is noticeable. If you tow regularly, both are a worthwhile investment.
Thank you for sharing your great experiences with us! This is a fantastic example of how to correctly use both weight distribution and air bags together to improve the safety, comfort and ease of towing. Thanks for taking the time to comment.
Excellent video. I did this calculation on my F250 based on wheelbase length, hitch-ball length overhang from rear axle, and baseline axle weights before finding this video. You have confirmed my faith in the scientific method. I calculated a loss of 300lbs on the front axle with a 740lb tongue weight without weight distribution. As in your video, I found that 300lbs is transferred to the rear axle, along with the 740lbs tongue weight, reducing the GAWR margin. BTW, I use a Fastaway E2 hitch with my Mini Winnie 27ft TT. {Your weight discrepancy (noted by earlier post) may be due in part to the spring bars that weren't used in the first part of your experiment.}
+bbhrdzaz, Thanks for the comment, and for towing with an e2 hitch! You are correct, the absence / presence of the spring arms would affect the measured weights.
Great video. My first used Travel Trailer came with an Equalizer WD Hitch. I used my 4x4 Expedition to tow a 6400 lb trailer. It worked great. I then got a newer Travel Trailer that I pull behind my diesel Excursion. I kept the Equalizer hitch when I traded in my Travel Trailer and I'm glad I did. The new TT is about 8600 lbs, and it will make the rear of that Excursion squat without the Equalizer. I wouldn't even think of towing that heavy of a trailer without the Equalizer. Hey, they just proved the reason to use it. Like some other viewers said, I too would like to see a comparison that has the airbags inflated and using the Equalizer.
Outstanding explanation and perfect timing for me. I have been wondering about the differences between the two and whether I should consider using both together. Your video, even though it's a few years old, along with your responses to questions from other viewers provided me all of the answers to my questions. Thank you so much for doing this video!!!
NOICE!!!! I am waiting on THAT video. I have always towed with WD, but now that I have bags, I wonder how I would need to setup my truck to use both and keep the truck level as it is empty.
4005 - 3925 = 80 not 75. Same on Rear - 3650 - 2795 = 855 not 845 as your summary shows. The e2 distribution shows load being shifted to trailer axles, but only shows total load. I would have liked to see two scales on each trailer axle - to show that you are overloading the front trailer axle when not level, and with the e2 you are level and distributing the load equally back onto both trailer axles. Do this again to show if the e2 is distributing the trailer axles as well.
Awesome job with this video! Loved the simple and clear explanation of how weight moves around with those simple diagrams. Thank you for taking time and sharing this information with us. Appreciate it!
Excellent video. As someone who owns and operates a trailer repair facility and races cars you did a very good video that is very precise! Great job!!!
Great video.. Only thing you missed was after connecting the weight distribution system you should have used the air lift to get yourself level. Or adjusted the ball angle to increase the distribution to get the rear of the truck level again. Thanks for making this video.. Super helpful.
Thank you for taking the time to conduct such a detailed experiment to promote your product. I found it refreshing to find someone using a scientific approach to address an issue rather than rely upon hearsay or unfounded opinion. However, there exists a flaw in the video's data that I would like to address. Specifically, the results do not account for the mysterious weight gain of 110 pounds between the "Baseline Measurements" and the "Weight On Only" measurements. The "Baseline Measurements" show the combined truck and trailer axel weights as 11,585 pounds. But the "Weight On Only" measurements show that weight increasing to 11,695 pounds. That's a 110 pound discrepancy which remained unaccounted for. Furthermore, the problem increased with the next set of measurements, as the "With Airbags Inflated" combined axel weight had inexplicably increased to 11,715 pounds, differing from baseline by 130 pounds, and increasing from the last set of measurements by 20 pounds. My point in all of this is simple. The measurements show conflicting and erratic data. The combined axel weight of the truck and trailer should not change over the course of those measurements, as neither the truck nor trailer can gain or lose weight. It should always equal the baseline of 11,585 pounds. But it doesn't. Which begs the following conclusions: Either, 1.) The test equipment has yielded unreliable data; 2.) The methodology of the entire experiment is flawed; or 3.) A combination of both 1 and 2. In any case, the conclusion used to promote your product are based upon unreliable and inconsistent information, and is therefore invalid. It's possible you may have innocently overlooked these discrepancies. Do you have an explanation?
+Louis Guske, Jr, thanks for taking the time to watch the video so closely, and for the comment. Let us start by clarifying that this was never meant to be a scientific study of weight distribution and air bags. The primary purpose of the video was to help clarify the misconception within the towing community that air bags and weight distribution do the same thing. We wanted to demonstrate the principle that air bags and weight distribution have different effects on the way the tow vehicle carries the weight of a trailer. You are correct that there is a discrepancy in the numbers. This is due to the tolerances of the scales being used. The axle weight scales are +/- about 5 lb, and the tongue weight scale is a simple hydraulic scale with an analog dial that has a wider range in tolerance. We did the best we could to get good measurements, but as stated earlier, this was not meant to be a scientific study. Overall, the 130 lb difference is less than 1% of the total weight of the combined vehicle, and we determined this was accurate enough to illustrate the principle we wanted to show. Our overall conclusion is that both air bags and weight distribution are good tools when used correctly and for the purpose they are intended. We hope that is a satisfactory explanation.
Thanks for clarifying that, as I now better understand the purpose of your demonstration. The beneficial effects of proper weight distribution aren't necessarily intuitive, and it takes a demonstration such as this to make that point. Thanks again for your efforts and bringing clarity to a subject that is typically confusing and often misunderstood.
+Mustang .308, air bags are a very useful tool when used in accordance with their intended design, which is to be a supportive addition to a vehicle's suspension. For pickups (or other vehicles) carrying heavy payloads like cargo or the pin weight of a 5th wheel or gooseneck trailer, air bags can greatly enhance the performance of a stock suspension. However, air bags do not provide weight distribution as defined by returning weight that is lost on the front axle of a tow vehicle due to the addition of carried weight from a bumper-pull trailer. Weight distribution changes the way the combined vehicle (tow vehicle coupled to trailer) carries the weight, which helps keep the tongue weight of the trailer from counter-balancing and thus subtracting weight from the front axle of the tow vehicle. These principles apply to all tow vehicles and trailers, however, each will react to a higher or lesser degree, based on their specific suspensions and the loads they are carrying. Each setup should be adjusted and fine-tuned for its own best performance.
Good luck trying to explain this to rv dealers who refuse to properly setup WD hitches for customers. They are constantly setting up the hitch allowing the front to still be higher than unloaded. I have tried to explain to countless companies that this is incorrect, but they always say the same thing "This is how the WD hitch instructions say to setup the hitch." Your video proves what I have been saying for decades! Even with weight distribution setup to drop the front height slightly, there will still be less weight on the front axle, so how do they expect a 1/2" of ride to be "distributing" the proper weight back to the front. Personally, I setup the WD first, then air up after. I have found it easier to get the right transfer back to the front. If I try to air up first, then I always have to let air out once the WD is installed.
+Charlie Odom, we understand where you're coming from. We spend a lot of time teaching and training our dealership's staff, it is one of our highest priorities. They face a difficult challenge with constantly updated technology from all of the different and varying products they sell, employee turnover, etc. Most do the best they can with the resources they have. This is why we publish videos like this - as a reference for their staff and for the customers using our products. We hope that every customer gains a clear and thorough understanding of how to set up and use their equipment so that they have the best and safest experience while towing. As always, it is important to remember that not every setup should be the same. Different combinations of tow vehicles and trailers require that each setup be tailored to fit that particular towing situation. Heavy duty tow vehicles like a 1 ton pickup will react very differently to weight distribution than a smaller SUV. Be sure to follow the owner's manual when you set up and adjust the hitch, and pay attention to how it is towing. Make adjustments as necessary so that you get the best and safest tow for your particular setup.
Charlie Odom I believe most people don’t understand how to first set the angle of the spring arm pockets below the ball. If they don’t start the tension of spring arms early enough (low enough) you end up with inadequate tension and too many chain links have been dropped off leaving the spring arm WAY too high alongside the tongue beam, which will bind up the whole system in a sharp turn.
In Summary, use the correct tool for the job. Air bags serve a purpose, but not for what most people think. The way these guys have it setup, using the WDH, and the recommended air pressure in the bags gives for a smooth stable ride. Note they did not try to add air in once the WDH was set up or they would defeat the purpose of the WDH. Good job guys. Manufacturers put a rake in the pickups for this specific purpose, when loaded properly the truck levels out. When hooked up with a properly set up WDH, the truck levels out. With a little more tweaking, I would not be surprised to see them return 100% of the FAW and level the truck to nearly 0 on their meter. I use a Blue Ox on my F150 and it is setup to return 100% FAW, and is nearly level front to back, plus it reduced GVW by 400 pounds. In short, if you need air bags to carry the load, you are overweight, get a bigger truck! They were spot on with overloading the rear axle. Most 1/2 ton have a 4000 GAWR! Things go boom when you overload it!
By changing the height or angle of the ball, and by using different links on your chains you can move weight around to add or subtract weight to any axle and still keep your ride height level on the tow vehicle and the trailer.
Nice setup with the scales and the video production. The presentation of factual information is helpful. What is missing is a follow on discussion of other factors that could change the distribution by similar amounts. During a trip pulling an RV passenger, fuel, water, and food loads are worthy of consideration. The load distribution hitch will too its best to accommodate the live loads but the addition of a discussion on the subject would improve the value of your work. As a check on your work you could list the total weight on each comparison slide. Also discuss the impact on ground clearance by the addition of the load bars.
Wish I could give this vid two thumbs up, awesome job guys, simple and to the point. The wife and I are in the process of putting a 7790 lb travel trailer with 1000 tongue weight behind our Ram 1500 with a hemi, the weight is right on the max but this clears things up nicely.
Thanks David! Glad you found it so useful. As always, make sure your equipment is rated to cover all of the weights you will be towing. Good luck! Let us know how it goes with the new rig.
>This is quality short video towing for dummies made simplier & u do/did all the math. < A bit of both 1st this adjustment of load on trailer usely right over axes or if needed 40/60 just on & behind the axles of trailer. mostly 1 & done based on trailer normally towing. > ^Last after connecting trailer level out fine tune so truck & trailer r both level & give it a low speed test drive & if poss over speed bump. Should b good to go. Air bags & bigger springs & shocks won't make a 150 n2 a 250 or 250 n2 a 350 or dually though.
Cool project. Very analytical. I was considering adding air bags along with my weight distribution hitch, but your engineering project has showed me that it really is not necessary. Specifically, as you mentioned with a comment below, the air bags change the dynamics of the WDHS. Furthermore, air bags have a tendency to leak (not all the time), so even if the WDHS was adjusted to account for the change the air bags create, the potential for leaks and the changes that could follow don't seem worth it to me. Thanks for sharing with all of us!
Yes, but most people are interested about using both systems. Why not bring that part up? I don't know many people that just one one vs the other, most realize the importance of the WDH systems, but it would be nice to see a summary of the advantages/drawbacks of using both systems in tandem (and the best way to set them up if doing so)
From what I read, using bags along with WDS diminishes the benefits of the WDS both from sway and weight distribution perspectives. I can't explain why or if it's even true, but that's what I read.
great video guys, thank you very much. I was bouncing back and forth ( no pun intended) between either or. I will probably do both. the weather can be great when I hook up but as soon as I pull out the driveway the wind kicks up another 20mph.
Great info guys! Thank you! I've been considering putting airbags on my new 3/4T, like I did with my 1/2T, but now I don't think I'll spend that money. Seems like a weight distribution hitch will work much better for my normal applications.
@ Dave Dreyer ...Only go with Airbags if you decide to tow 5th wheels and/or Gooseneck trailers. I got Airbags on my Chevy Duramax and have not noticed any major benefits when towing my 10,000lbs TTRV because I already have the WDH system and Sway Control Bar. But I'm selling my TTRV and buying a luxury 5th wheel.
We agree completely. Check your vehicle’s towing capacity, either in the owner’s manual or on the receiver hitch. It’s almost always double when using weight distribution vs. weight carrying. Towing with a good weight distribution/sway control hitch like the e2 hitch [fstwy.co/e2] is the safest and best way to tow a heavy load. Thanks for the comment!
I use both! I have a 26 ft pull trailer and a Ram pickup with about 800 lbs cargo in it. The Airlift bags are nice to have to keep level even with the equalizer hitch.
Good demonstration. Help to clarify the weight distribution between the two methods of air bags and weight distribution kit. Timely info for me as I am in the process of purchasing a travel trailer. Thank you guys.
Wow...knew there was a difference, but more than I had assumed. That magic 50/50 weight distribution on the towing vehicle is MUCH closer with the distribution hitch. Bummer they won't work on an off-road trailer, so bags it is...but when I buy my boat? Yep, know what I'm doing!
Wonderfully informational, and professional 👏 you answered so many questions and saved me lots of money. You just can't beat actual testing. Thank you fastway.
Put enough air in to squat an inch and a half to 2in. Then, engage the distribution hitch. It should be a combination of the 2, not just one. You'll gat a better ride.
Great video. New to the towing world here. I have a weight distribution hitch and air bags. I wish to use both efficiently in order to have the safest ride possible. Any videos on how to properly use both?
Three things to remember for a safe towing: 1. Never go above your vehicles GCWR( gross combined weight rating) ; 2. Keep your trailer weight distributed, so the thong weight is not over what's supposed to be; and 3. Keep your speed below the speed limit on the highway ( California mandates 55mph for anything that has something in tow- for your safety).
Great video. Proved weight distribution is superior. Also packing your trailer strategically for trailer weight distribution is very important. Great job guys.
You are correct, proper trailer loading is a critical component of towing safely. Both weight distribution and air bags are good tools as long as they are used properly and for the job they were designed to do.
Excellent video, Thanks guys.. I now understand my airbags on My 2015 TRD offroad are not even needed now when towing my trailer, (actually they are the wrong approach) I will only use the Weight Distribution hitch, this style hitch makes a HUGE difference when towing. From Slightly scary to NICE Controlled ride. I do use the Airbags when hauling loads of wood stone etc. in the Bed to level it out.
With the weight distribution hitch being connected from the hitch to the tongue of the trailer using the ball as a fulcrum it would be interesting to have a scale on the ball to see how much more stress the ball is under.
The force between the hitch ball and trailer coupler can increase by about 2.5 times the amount of the original tongue weight. Makes it important to use grease on the hitch ball!
This video is fantastic just bought a toy hauler after using a truck camper with Timbrens wasn’t making much sense why I needed one of these hitches until watching this video
Agreed Thomas H....I have used both with my Toyota Tundra. Will use air bags and Andersen weight distribution /anti sway system for my 2017 F350/Arctic Fox 26X. Will also have a 2018 RZR S1000 on my Diamondback utv system. I think this will be the ultimate way of solving these problems.
Hi, can you confirm the overall combined weight increases when using the WDH compared to using no other devices for levelling vehicle??
When looking at the overall combined weight for the “coupled”, “leveled with airbags”, and “weight distribution” setups - the resulting totals were 11,695, 11,715, and 11,720 lbs. The difference in these numbers is attributed to the precision and accuracy of the wheel scales that we used and is within 0.2%. Being within 0.2% when the precision/accuracy errors of 8 different scales are added together is quite good - especially for our purposes in this demonstration of general principles.
Admittedly however, there are some typos and a mistake in the numbers shown which do account for some discrepancies. One of the mistakes is with the baseline trailer axles number which then carries through in the math throughout the video. With the trailer uncoupled we used an additional scale under the jack when measuring the tongue and axle weights. There is a conversion that then needs to be done to get the exact weight at the hitch ball coupler location. We used the converted (actual) tongue weight of 1000 lbs. in the video but forgot to use the converted axle weight. So, the uncoupled or baseline trailer axle number given is 70 lbs. less than the actual. Also, we didn’t add the weight of the spring bars (35 lbs.) to the uncoupled total. With these two corrections the “uncoupled” combined weight should have been 11,690, only 5 pounds different from the “coupled” combined total. The additional discrepancy is due to the precision and inaccuracy of that tongue weight scale that we used. At minute 12:17 in the video - the correct increases to the trailer axles should be 295 lbs. for weight distribution (instead of 365) and 55 lbs. for the airbags (instead of 125). For the airbags, that trailer axle difference should theoretically be zero when leveled. The reason it’s not is due to the trailer not being at the exact same level/angle and the scale precision/accuracy. As the trailer tips down in front then the front axle of the trailer will take a slight bit more load from the tongue weight. In the weight distribution example, some of that weight difference would also be from the trailer angle and scales then also some from spring bar weight. The majority (~250 lbs.) is from the forces of the bars on the trailer for weight distribution.
In spite of some unfortunate presentation mistakes in the video, those errors only affect the magnitude of the effects which will be different for each towing setup anyway. The general principles remain the same - 1) Even though airbags are good for vehicle leveling and ride comfort, they do not distribute weight off the rear axle back to the front axle nor achieve all the towing benefits that come with weight distribution and its inherent sway control 2) Weight distribution increases front axle weight for improved steering and handling and also alleviates the weight and stress on the rear axle of the tow vehicle 3) Because weight distribution also levels the vehicles, airbags usually are not necessary when using a weight distributing hitch.
Final note, airbags or auto-leveling can be used with weight distribution to improve ride comfort if desired or if auto-leveling cannot be disabled on the vehicle. Keep in mind that increasing airbag pressure or auto-leveling after setting the hitch will decrease weight distribution. Measure the amount of weight distribution after leveling the vehicle and adjust the hitch as needed to maintain the appropriate amount of weight distribution. Refer to the following video for more tips on adjusting your hitch when using airbags or auto-leveling in conjunction with weight distribution - ruclips.net/video/mj2oqAiltsk/видео.html.
@FastwayTrailer yes, i have found the same, thx
Well thank you, I just cancelled my air bag installation at a workshop 30 mins ago based on this video because the RV dealer has installed an expensive, higher weight rated Reese WD hitch on my new 31ft travel trailer which weighs 7600Lbs loaded. I think I'd better stick with the science and data shown in this video than having both airbag and WD combined because it won't help at all. A solid educated decision made and thanks to your video for that.
I use a WD hitch WITH airbags on my half ton. It eliminates any bounce you may encounter driving on bad highways. They work great together.
I’m thinking of getting airbags for my 1500 Sierra but I have one question, when not towing do those airbags running on 5 psi make your ride quality worse? I’ve heard the ride quality is very bouncy when not towing.
No it’s actually better
What PSI do you run in your bags?
I’ve discovered the air bags and WD hitch working boy together works great together. Now I have upgraded the braking on my truck on all 4 wheels and on the trailer brakes.
I used both and it worked great.
I made a video explaining that if you have a heavy pulling vehicle and a light trailer, you should NEVER use a WD hitch because weight will distribute from pulling vehicle back to the trailer. Keep in mind, some small travel trailers can only accept #500 of cargo. Therefore a WD hitch can be a bad thing in some cases. I got called a liar and many other terms, even though my info came from Reese Hitch engineer. I am so glad an engineer is testing it right in front of everyone's eyes with scales and tape measures etc. I do my best to educate others and get educated myself. Thanks for the video, it is very informative, and clear! This video clearly shows a WD hitch can send weight to the trailer axle causing it to be overloaded.
This is kind of a complex principle to explain, but we’ll do our best. You are correct that in theory it is possible to overload the trailer axles when using a weight distribution hitch, and that it is more likely to happen with a smaller trailer having a lower gross vehicle weight rating (GVWR). However, this could only happen in practice if the weight distribution hitch has been set up to be over-adjusted.
In this scenario, the hitch would have to be set up in such a way that enough weight is being lifted off of the rear axle of the tow vehicle that the portion of this weight NOT being therefore carried by the front axle of the tow vehicle, when added to the trailer’s gross vehicle weight (GVW) would cause it to exceed the axle rating. For example: a trailer with a GVWR of 3,000 lb, loaded close to capacity at 2,900 lb, with the hitch adjusted in such a way that it is lifting 600 lb from the rear axle of the tow vehicle, where 400 lb of this weight is then carried by the front axle of the tow vehicle, and 200 lb is carried by the trailer’s axle. In this case, the GVW of the trailer at 3,100 lb would exceed the GVWR of 3,000 lb.
You can see by the example that this would be a difficult and unlikely scenario to achieve, though it is possible to achieve.
Thank you for watching, and for the thought provoking comment! We’re glad it was helpful for you.
Great video even at 7 yrs old... now it would be nice to do an updated video using both WDH & Airbags
Great suggestion!
Would love to see this!
I used both. Firestone air and equalizer weight distribution hitch on a 09 RAV4 v6 wtp. Towing 3500lb. Set up by RV company. Handled beautifully on 5900 mile trip. No sway handling problems. Car and trailer are level. Very happy with rear view camera set up while towing also.
Painstaking review that took the time to prove results by weighing the vehicle AND trailer. No one does that. I’d have guessed the airbags would be superior but the much less expensive distribution hitch clearly came out on top. I pulled a 22’ work trailer with the distribution hitch and I could barely feel it back there. I had to check my rear view to see if it was still there. 👍 Great job guys!
Excellent video dispelling many myths and urban legends. This is perhaps the BEST video made on this subject and is truly very much appreciated by all who watch it. Thanks for taking the time and making the effort to clarify one of the most stubborn questions out there. Very nicely done guys. Thanks again .
Thanks +Wayne Powell! Glad it was helpful.
The thanks goes to all who made this possible. Again a very educating video. facts are facts.
Great video. I really would of loved to see the numbers at the end if you would of filled the air bags to get the rear back to "zero"level with the using both to together.
Exactly, great video but I would like to know if air bags would help coupled with the weight distribution hitch.
The more you use the air bags to raise the rear the more load it takes off the weight distribution hitch. Therefore, it reduces weight on the front axle and increases weight on the rear axle. Check out this follow up video for more numbers and details - ruclips.net/video/mj2oqAiltsk/видео.html.
@@jasonh2832 properly set up, the wd, then yes you could finish off the leveling with air suspension, however this will require a different set up of the wd. It will need to be about one link tighter. Your weight distribution will be the same, you'll loose that 1/4" squat, and the ride will be smoother. I'm a proponent of using both. Along with Timbren stops to smooth out hard bumps, and reduce roll. And don't forget good trailer brakes too.
That’s what I said
@@jasonh2832 I have both airbags and e2 distribution hitch, my question is what should my airbag pressure be before I setup my e2 hitch?
Weight distribution hitches are great but I have air bags because Weight distribution hitches don't do anything for me when I am NOT towing and I have my truck bed full of dirtbikes or construction supplies.
I use both! The bags kick the bouncing. I tow a 35 foot travel trailer and always use weight distribution with anti sway and put 35 PSI in my bags.
I also use both, my father used both.
Very scientific, I just priced your intercomp wireless scales kit at $9,918.00. Thank you for making this video We appreciate your dedication and professionalism. I would’ve liked to have seen you move the weight in the trailer back and forth and see the difference and also with the weight directly above the axles.
I haul different types of RV's so i need both air bags and bars. When i pull a TT i use bars mostly when weather is good but in winter driving i lighten the bar load and put more on the air bags... i like more weight on drive axle. Also, some jurisdictions require equalizers. What i like about the air bags is that the handling is better with less sway.
This is great info especially for someone that pulls the same trailer(s) regularly.
I have both air bags on my truck and a weight distributing hitch with my enclosed race car trailer. Best of both worlds.
I was curious of this as well. Did you setup the bags first then the WDH? Thanks
@@josephbrockman5715 I had bags first for the weight I carry in work tools so every trailer over a certain weight needs by law for distribution set on the trailer just like tow mirrors are law for length .. like ol' boy said best of both worlds.. I still need to dial in the distribution bars torsion then dial in the bags ...
A great demonstration of the value of WD vs Airbag. Having just moved from and F250 to an F350 Dually, my first tow without WD was very disappointing! Adding the WD was a game changer. Thanks for explaining why!
Glad it was helpful! Thanks for watching!
I retired as an engineering manager from one of the popular air bag companies. I was pretty nervous about where you were going with this, but I say bravo and well done! Air helper springs do not solve weight distribution problems, and WD bars do not solve the problem of sagging springs. Unfortunately, both industries advertise differently. I want to comment on the application of the air springs.. when the air is pressure is proper, the frequency of the bouncing will be acceptable to the driver and passengers. A slow deep bounce means under inflation. A fast harsh bounce/ride probably means over inflation. It requires trial and error to find the correct combination of air pressure and adjustment to the WD bars. Another point I want to drive is that the air springs must not be carrying the full weight of the load..it will create undo stress on the frame and an unbalance suspension. Always readjust the WD bars after adjusting the air pressure, and vise versa. Once you figure it out, you should be good unless you make changes to the load ie: you put your motorcycle in the back of the truck, etc. thanks!
Thank you so much for the comment, especially the great advice on getting the proper pressure in the air bags for the best ride and the caution about carrying the full load, as we get a lot of questions about the air bag inflation in the comments here. Thanks for watching, and please, feel free to weigh in again anytime!
I was just gonna ask if you used both how that makes a difference if you use the airbags with the weight distribution hitch what does that do you know the guys should do a video on that as well.
Good video, you addressed each system but you never addressed using the two together I have an F250 that doesn't have overloads and I'm using airbags as overloads I'm planning on towing a trailer with a slide in camper on my truck can I or should I use weight distribution and airbags?
The best explanation I've seen. I've done the same measurements when working for a car manufacturer here in Australia years ago. The measurements don't lie, but you can argue till you're blue in the face with people who think that just levelling out the tow vehicle is what it's all about. Great work guys.
Thank you and thanks for watching!
Best explanation I have seen yet with scientific testing methods. For anyone that challenges me, I will make them watch this.
Glad it was helpful!
Great video! Your demonstration was exactly what most people want to see to be able to understand weight distribution and that air bags aren't the easy solution!
Thanks Bernard Woods!
It is our hope that having access to good towing information helps people make informed decisions to keep themselves, their families, and their equipment safe.
Thanks for watching!
Great illustration. Thanks for the work. I realize this is an older video but still very relevant still.
Glad it was helpful!
Not sure why we have negative comments on here. Test was simple and proving a particular point. I am sure you could have done a video an hour long to go into airbag/distribution bars combo.....tire pressure changes needed for proper handling on trailer and tow vehicle..... and proper trailer loading. Thanks for the video.
You're welcome! We're glad you enjoyed it. Thanks for watching!
I have both as well. Recently purchased a 29' trailer (4600 lbs empty) to tow behind our beautiful 2004 GMC Envoy XUV XLT (89,000 miles on odometer, bought in new) which is rated to pull 6400 lbs. It has airbag suspension (I replaced the airbags two years ago), and installed an Equal-I-zer WD and anti sway hitch. The Envoy does not sag at all and rides so well I can't even tell I'm pulling a trailer. Nice.
Excellent video.
Alot of people who tow trailers wouldn't realise including myself.
I have the Equalizer hitch system for my Toyhauler. I was looking at getting bags but have decided against it after seeing this video.
Typically any load on your hitch over 500 lbs should be done with a Weight Distribution Hitch. This is true for most class 3, 4, 5, etc hitches
From there, you should be adjusting the height of your hitch ball on the WD platform to make your trailer level. The truck's rear suspension will sag a bit, but it is fine.
If you want to remove the sag, and improve front wheel handling and stopping, and lower your headlight beams, then you should add airbags to remove the sag from the rear of the vehicle.
After adding the air bags, you will likely need to lower your hitch ball height on the WD platform so as to keep your trailer level.
Airbags are not a replacement for WD hitches!
I run both. WD hitch is a must. Airbags only improve from there.
EXCELLENT video guys! Thnx for taking time to diagram & explain...curious what the distribution hitch WITH air bags would have done with the weight?
Thank you! This video has saved me $900 for an air bag installation. I am purchasing my second RV and putting the best WD Equal-i-zer hitch available for our truck and RV. I had considered both actually to compensate rear axle stress and sag. My suspicions are confirmed, a properly installed WD Hitch (i.e. your video on installation and importance of measurement) will be sufficient.
+Mike Bushert,
Glad it was helpful and informative. Thanks for the comment, and good luck with the new RV!
I was wondering if you have ever done that same type of analysis using a WD hitch and airbags at the same time. I would be very interested in seeing the results from that setup. Thanks. Great video by the way.
Thanks for your response! We don't normally recommend using both air bags and a weight distribution hitch together. The air bags can counteract the weight transfer that the WDH is giving. Using air bags to raise up the back end of the tow vehicle will decrease the amount of tension placed on the hitch, which determines how much weight distribution and sway control you will get. So, raising the rear of the tow vehicle to eliminate squat will reduce sway control.
This has got to be the best comparison video I've found. I was looking to get airbags installed for my camper, but after this video, I don't think I'll waste my money if my weight distribution is going to do a better job at keeping my weight shifted.
Glad this video helped!!
I'm surprised that some people still think of it as an either, or question. Especially when the two options were developed to solve two different problems; and neither was intended to increase payload capacity.
Weight distribution hitches were designed to help redistribute some of the weight between the tow vehicle and the trailer, in a way that improves overall safety and handling when towing. While they may help to some degree with sag, that's not the intended purpose.
Air suspension systems were designed to provide a solution for sag, as well as improve ride comfort. Using it to redistribute weight isn't at all appropriate; and as the demonstration shows, can even be detrimental.
It just makes sense to consider using both, because together they solve multiple problems simultaneously, without hindering performance, or safety.
I was just thinking this. Would have been nice to have seen the WDH set up and then use the airbags to get back to the optimal ride height. What would that have done to the weight distribution according to the scales. Oh well!
Thank you! This is much needed. Too many are quick to say air bags, which from my research are not the answer but a bandaid to sag and not weight. Your test affirmed that and proved what works and what is merely a superficial fix. Glad I bought a WDH.
Glad it was helpful!
@@FastwayTrailer Just like your products - helpful!
I tow 4000lbs, with a Rav4 V6 w/tow package, air bags and weight distribution hitch. Proper tires. No handling problems in storms, high winds and passing semi trucks, in 6000 miles.
Thank you guys for the clarification. Very helpful 7 years later 🤗
Glad to help!
I'd be interested in seeing the numbers with the trailer loaded and not just to get a tongue weight. For a properly loaded trailer to have a 1k lbs tongue you should have an additional 8500-9k lbs of cargo and trailer weight.
This was.very helpful to me as I bought a toy hauler today and am pulling it with an 06 Jeep Grand Cherokee with a 5.7 Hemi. The power is there but the tongue weight is very heavy for this vehicle. The dealer suggested air bags or a WDH but wasn't sure which one was best. Now I know. Thank you so much.
You're welcome! We are happy to help! Thanks for watching!
This is the most informative video I've seen on the subject. Numbers don't lie, great job!
Glad it was helpful!
Thanks for the post! I wondered how the weight distribution system worked. We sold our motorhome and are buying an RV trailer, so I'm viewing all the videos like yours. 👍😎
+armstronglance,
Thanks! Glad they are helpful.
Excellent video guys. I have a Ford F-350 equipped with air bags and I tow a 10000 pound bumper pull trailer. I’ve been having a problem with the sway bar system not doing its job as I am using a combination of both air bags and the equalizer hitch. Based on what I watched in your video I’m going to try just the equalizer and not the bags to see what happens. I’ve got a truck scale not far from my place so I can get some axle weights as well. Thanks, keep it up.
Awesome and detailed video, and particularly useful in explaining why air bags alone don't help much. In my experience towing with a minivan, air bags reduce vertical motion when going over dips, and spare the rear suspension some travel. However, there are negatives with air bags that aren't as frequently discussed: they make for a more jarring ride by passing more road vibration to the vehicle and hitch assembly, and the fundamental issue with dramatically different axle weights between rear and front remains unchanged. Thanks!
elektronen
Thanks for the compliment, and for sharing your experience with us!
I've used the chain WD hitch for years on a construction trailer on short wheel based vans with the friction anti swaybar. On Long wheel trucks I did not need the sway bar. Got use to the chain adjustment fairly easily. When setup properly towing is a pleasure. I just bought a new enclosed cargo trailer and the old Huffy would not fit. I would need to cut holes in the floor to link the chains up. Bought a newer style WD hitch setup called a Curt True track #17499 WOW what a pleasure to tow with this! It has square spring bars that allows shorter placement of trailer frame clamps. And this system doesn't use chains. So the anti sway is built-in to the product.
Great demonstration guys. Many struggle with these options and you made it perfectly clear.
Before.....and then after I bought a weight distribution hitch, I found myself on a stretch of highway that undulated up and down in a very consistent rhythm for about a half mile. The first time through, my camper and suburban did a hobby-horse motion that amplified quickly and made me do the upholstery clench until the brakes broke the rhythm. Next time through with the new hitch, truck and trailer acted as one unit, straight and calm.
That's awesome! Thanks for watching!
I just bought my first travel trailer, I was about to buy air bags. You just save me time and money!
Excellent video.
Glad I could help!
This is an excellent video and addresses the issues I’m having with my set up. I have a short-bed Ford F-350 and I carry a Honda Pioneer 500 UTV (1100 Lbs), which drops the bed 2 1/2”. When I hitch my 25’ trailer, which has approximately 900 Lbs tongue weight, the truck bed drops an additional 1 inch or more, making it very difficult to engage the weight distribution arms (Reese Stedi-Flex), even when raising the trailer tongue jack to the max height. The result was that the front suspension dipped below the stock height causing a very scary and unstable to tow driving experience. Today, I will be installing a set of Firestone airbags and I hope to bring the UTV-loaded truck bed back to near stock height; hopefully, this will allow me to engage the weight distribution to the proper setting where the front suspension of the truck will dip to near unladen height leading to a more stable and safer towing.
Awesome, thanks for sharing!
With 1,100 and 900 plus other cargo people, are you exceeding GVWR?
Airbags not smart, take WDH to dealer for install, then CAT scale, you don’t know proper install because rear sag not relevant, front axel rise is, once WDH on should bring rise down 50%, airbags make worse because increases drive axel weight
I use the Equalizer tow hitch and do like it. Easy to use and the anti-sway works very well.
I wish you would’ve done a third test that showed what happens when you use both the airbags and the weight distribution bars. Many of us out here have both and it would have been nice to find out if when used in tandem completely distribute everything evenly the way it should be.
Thanks for the comment. Towing with both is a great way to go. We have received the request for a video covering this from a number of people. It is a video that we are working on, and hope to have released soon.
Our advice is to set the air bags to the pressure you want to tow with. Then, set up and adjust your weight distribution hitch to get good weight distribution. You may need to make minor adjustments to one or the other, or both, to get it dialed in. Remember that adding air to the air bags after setting up the hitch will usually reduce the amount of weight distribution, and removing air will usually increase the amount of weight distribution.
I just got back from a CAT scale and performed this experiment with my setup. My tow vehicle was a 6000 lb Tundra and my 32' trailer was 7000 lb. My base front axle weight unloaded was 3360 lbs and it dropped down to 2980 lbs (-380 lbs) loaded without WD. My base front axle weight was 3200 lbs with the WD bars engaged and 5 psi in my air bags. With the air bags at 20 psi, the front axle weight decreased to 3160 lbs (-40 lbs). With the air bags at 35 psi, the front decreased to 3140 lbs (-60 lbs). I took these weights with a half tank of gas and I was the only passenger. I am going to go back sometime with a fuel tank of gas with the family loaded up. Just remember that the more pressure you have in your airbags, the less tension there will be on your WDH's spring bars. Everyone's setup will be unique, but I'd thought I'd share mine.
@FastwayTrailer
What's a good target weight to distribute back to the front axle? At least 50 percent of the difference between the unloaded base weight and loaded weight w/o WD? I was able to achieve 58% at 5 psi and 47% at 20 psi.
Thanks for your fantastic comment. Thanks for sharing your real life numbers with us. The ideal target for weight distribution for a specific setup is a hard thing to state definitively because there are so many different factors in play, such as tow vehicle size, suspension type, spring rate, trailer weight and suspension, distances between axles and hitch ball, etc.
As a general rule, we recommend getting at least 50% (halfway) back to the unloaded baseline. Therefore, in your example above, your vehicle went from 3,360 lb on the front axle to 2,980 lb (-380 lb) with the trailer coupled. Halfway back would be at least 3,170 lb (3,360 - 380/2) on the front axle. Best case would be to get 100% of the weight back. We would consider a front axle weight anywhere between 3,170 lb and 3,360 lb good weight distribution. As such, if you are towing with 5 psi you would be in the good weight distribution range. If you are towing with 20 psi, you should consider making an adjustment to your hitch to increase the amount of weight distribution it is providing.
There are some cases where getting 100% back is not realistic. This is sometimes the case when you have a longer heavy duty pickup with very stiff suspension. In this situation, getting at least 50% back is good, and somewhere between 65% and 75% back is ideal.
@@FastwayTrailer Thanks for the reply. I think I have a good starting point. Camper and truck were partially loaded during this weigh in. I still have to add the family and gas which should add another 500 lbs to the truck. I'm curious to see how much more of the weight is distributed to the front with more weight in the truck. I'm also hoping I have more adjustability to the air bags with the truck fully loaded.
You’re welcome. Sounds like you have a pretty good handle on things. We expect that you will see pretty much the same thing, even with the added weight in the truck. That added weight will increase the baseline axle weights, but when you add the trailer, you will still counter-balance out about the same weight. You should see a very similar increase at the rear axle, and decrease at the front axle. Of course, adding weight to the trailer will change things a bit too. Let us know what you find. Good luck and safe towing!
Excellent video on a ,at least for me,confusing topic. I now have a solid understanding of the differences between the two. Thank you for a clear,concise video!
Glad it was helpful! Thanks for watching!
Thanks for making this video. It really helped understand how load weight distribution works. 4 year old video still helping people ovoid accidents 👍
Glad you like it! Thanks for watching! We've got a new video about auto leveling suspension and weight distribution coming soon!
This was so helpful. We are going to be buying a trailer to tow with our Ram 1500 4x4. This illustrated weight distribution in a way I could understand it!
Now THAT was terrific video with actual data and evidence!!!!! (I am a Lean Six Sigma dude so I love solid evidence!) I am grateful for the information as I have a smaller truck (2019 Tacoma) with which I will pull a travel trailer (4400# dry). Yes, I know that a bigger truck tows more but frankly I also want a daily driver when I'm not towing. I currently have a WDH and was wondering why all current interest in Air Bags (fad??)....this video clarified it fully...Very well done and explained....No further questions from me. I will make sure my load is properly balanced and my WDH is set well. YOU GUYS ARE JUST PLAIN AWESOME!!!!!!
Thanks for watching!
Ive heard with bags getting frames bent cause they mount in a 6 inch space vs the springs mounting say 3ft away from each mount on the frame. Also if you look at big rigs they have bags in one place but the axle mounts to an arm for the bags and still has its other end 2 ft away
Great video to illustrate each system's attributes.
I have a GMC Sierra 1500 with a ~7000lb TT.
I have both the Equalizer. and the Air Bags (Firestone).
This combination works very well for me.
The WD hitch does the brunt of the work, and I use the air bags mostly when driving at night to level the projector headlamps (if needed).
The airbags do aid in uncoupling the hitch as well, especially if on rough terrain (to lift up the rear of the truck).
I have almost NO sway issues (so happy!).
Thanks!
Garry (Ottawa, Canada)
Thanks +Garry Hammond, sounds like you have a great setup!
The best part of this comment section is all the critical (smart ass) commentary being met with inarguable physics and substantive demonstrations leaving the arrogant know-it-all with no further debate.
Thanks for the compliment +Matt Bergstrom.
Air bags are ABSOLUTELY NOT a replacement for weight-distribution hitches! You may not sag in the rear, but you're still pivoting that weight onto the back axle and OFF of the front...the STEERING axle. Amazes me how many stupid people are towing shit around, an accident waiting to happen.
You're the first guys to actually provide an accurate, in-depth informative explanation of how to properly, and SAFELY, set up a trailer and tow vehicle. I hope this video saves someone from a ruined vacation or worse! Truckers are regulated til there's nothing left, while the general public and RV dealers can hook anything to anything with zero accountability.
Thanks for watching, and thanks for the comment!
Tell us what you really think! I think the answer to this question is really....It depends on what you are towing and what you are towing it with.
I know this is an old video, but thanks it was very clear and did an excellent job of explaining the systems.
You're welcome!
this is an excellent video! I was hoping you could do another with both air and WD? Show the weights over multiple PSI values (5-20-35-50 etc)
Great suggestion!
Awesome video! Done right with the animated pictures to sum things up and show exact numbers.
Glad you enjoyed it!
Thanks, Dave and Jason for helping to explain the difference and summarizing the effects of both systems. After reading many of the comments below, I see the intent to show a basic comparison was missed by those wanting you to replace their common sense in setting up a specific rig. Your setup was to help us make good decisions. I will be copying Thomas H's example and use both.
+Christopher Harwell,
Thanks for watching and chiming in. You are correct, we wanted to show the principle so that those setting up their rigs could have more information to be able to make a good decision for themselves. After you get yours set up, come back and let us know how it goes.
I use both an Equalizer WD hitch and an airlift wireless system on my f150 when I tow my camper, have used this configuration on several trucks now. The beauty is that as the tongue weight of the camper changes (full water on the way up the mtn vs. empty on the way down), I was able to find a WD setup that works in both scenarios without adjusting, simply by adding a bit of air to my bags for less WD, and letting some out for more (I know, sounds backwards, but it's not). The other nice thing about this is when heading to Elk camp in the fall, climbing steep dirt roads, if I need a bit more traction on the rear wheels, I can add air to the rear bags on the fly in seconds, which reduces WD and puts more weight on the rear axle, and on the way down the mountain when I want a bit more weight on the front axle for better braking and steering, I air the bags down all the way, which increases WD. The difference is VERY noticeable. I recently gave the 150 to the wife and got a 350, as I need to be able to tow heavier trailers for my company, and I installed the same setup on it. Even on the 1 ton, the benefit of having both the Equalizer brand WD hitch AND the bags with wireless control is noticeable. If you tow regularly, both are a worthwhile investment.
Thank you for sharing your great experiences with us! This is a fantastic example of how to correctly use both weight distribution and air bags together to improve the safety, comfort and ease of towing. Thanks for taking the time to comment.
As I watched this video I was wondering about exactly this. Great to know that they can be used together and how.
@@merpius, we're happy to help! Thanks for watching!
Excellent video. I did this calculation on my F250 based on wheelbase length, hitch-ball length overhang from rear axle, and baseline axle weights before finding this video. You have confirmed my faith in the scientific method. I calculated a loss of 300lbs on the front axle with a 740lb tongue weight without weight distribution. As in your video, I found that 300lbs is transferred to the rear axle, along with the 740lbs tongue weight, reducing the GAWR margin. BTW, I use a Fastaway E2 hitch with my Mini Winnie 27ft TT. {Your weight discrepancy (noted by earlier post) may be due in part to the spring bars that weren't used in the first part of your experiment.}
+bbhrdzaz,
Thanks for the comment, and for towing with an e2 hitch! You are correct, the absence / presence of the spring arms would affect the measured weights.
Excellent study gentlemen. You took all the 'personal opinion' out of the question...just what everyone really needs.
Thank you! Thanks for watching!
Great video. My first used Travel Trailer came with an Equalizer WD Hitch. I used my 4x4 Expedition to tow a 6400 lb trailer. It worked great. I then got a newer Travel Trailer that I pull behind my diesel Excursion. I kept the Equalizer hitch when I traded in my Travel Trailer and I'm glad I did. The new TT is about 8600 lbs, and it will make the rear of that Excursion squat without the Equalizer. I wouldn't even think of towing that heavy of a trailer without the Equalizer. Hey, they just proved the reason to use it. Like some other viewers said, I too would like to see a comparison that has the airbags inflated and using the Equalizer.
+HighlanderMikeGolf, we're glad to hear you've had a great experience with your Equal-i-zer hitch. Thanks for the comments.
Outstanding explanation and perfect timing for me. I have been wondering about the differences between the two and whether I should consider using both together. Your video, even though it's a few years old, along with your responses to questions from other viewers provided me all of the answers to my questions. Thank you so much for doing this video!!!
Glad we could help! We're filming a new video this week to help recap and go over some auto-leveling setups as well!
So airbags for payload and WDH for towing. I would have liked to see a test of both together.
We're in the process of making a video on that right now! Subscribe to see it when it's ready!
FastwayTrailer Excellent
NOICE!!!! I am waiting on THAT video. I have always towed with WD, but now that I have bags, I wonder how I would need to setup my truck to use both and keep the truck level as it is empty.
Jl Bush yes both together
I have both and would also like to see results of both together!
4005 - 3925 = 80 not 75. Same on Rear - 3650 - 2795 = 855 not 845 as your summary shows. The e2 distribution shows load being shifted to trailer axles, but only shows total load. I would have liked to see two scales on each trailer axle - to show that you are overloading the front trailer axle when not level, and with the e2 you are level and distributing the load equally back onto both trailer axles. Do this again to show if the e2 is distributing the trailer axles as well.
We've been wanting to redo this test for awhile now, as you pointed out some of the math is inconsistent. Thank you for your suggestions!
Awesome job with this video! Loved the simple and clear explanation of how weight moves around with those simple diagrams. Thank you for taking time and sharing this information with us. Appreciate it!
Glad it was helpful! Thanks for watching.
That is great information. Saves me the embarrassment of asking the old dudes at the campground how it all works.
Love this response! Haha!
Excellent video. As someone who owns and operates a trailer repair facility and races cars you did a very good video that is very precise! Great job!!!
Thanks for watching!
Great video! We got an 2500 and still use the weight system!
Great video.. Only thing you missed was after connecting the weight distribution system you should have used the air lift to get yourself level. Or adjusted the ball angle to increase the distribution to get the rear of the truck level again. Thanks for making this video.. Super helpful.
Thanks for the tip! We'll make sure to include that in our next video!
@@FastwayTrailer did you ever made a proper final setup ?
Man you guys was so close !!!
Thank you for taking the time to conduct such a detailed experiment to promote your product. I found it refreshing to find someone using a scientific approach to address an issue rather than rely upon hearsay or unfounded opinion.
However, there exists a flaw in the video's data that I would like to address. Specifically, the results do not account for the mysterious weight gain of 110 pounds between the "Baseline Measurements" and the "Weight On Only" measurements. The "Baseline Measurements" show the combined truck and trailer axel weights as 11,585 pounds. But the "Weight On Only" measurements show that weight increasing to 11,695 pounds. That's a 110 pound discrepancy which remained unaccounted for.
Furthermore, the problem increased with the next set of measurements, as the "With Airbags Inflated" combined axel weight had inexplicably increased to 11,715 pounds, differing from baseline by 130 pounds, and increasing from the last set of measurements by 20 pounds.
My point in all of this is simple. The measurements show conflicting and erratic data. The combined axel weight of the truck and trailer should not change over the course of those measurements, as neither the truck nor trailer can gain or lose weight. It should always equal the baseline of 11,585 pounds. But it doesn't. Which begs the following conclusions:
Either, 1.) The test equipment has yielded unreliable data; 2.) The methodology of the entire experiment is flawed; or 3.) A combination of both 1 and 2. In any case, the conclusion used to promote your product are based upon unreliable and inconsistent information, and is therefore invalid.
It's possible you may have innocently overlooked these discrepancies. Do you have an explanation?
+Louis Guske, Jr, thanks for taking the time to watch the video so closely, and for the comment.
Let us start by clarifying that this was never meant to be a scientific study of weight distribution and air bags. The primary purpose of the video was to help clarify the misconception within the towing community that air bags and weight distribution do the same thing. We wanted to demonstrate the principle that air bags and weight distribution have different effects on the way the tow vehicle carries the weight of a trailer.
You are correct that there is a discrepancy in the numbers. This is due to the tolerances of the scales being used. The axle weight scales are +/- about 5 lb, and the tongue weight scale is a simple hydraulic scale with an analog dial that has a wider range in tolerance. We did the best we could to get good measurements, but as stated earlier, this was not meant to be a scientific study. Overall, the 130 lb difference is less than 1% of the total weight of the combined vehicle, and we determined this was accurate enough to illustrate the principle we wanted to show.
Our overall conclusion is that both air bags and weight distribution are good tools when used correctly and for the purpose they are intended. We hope that is a satisfactory explanation.
Thanks for clarifying that, as I now better understand the purpose of your demonstration. The beneficial effects of proper weight distribution aren't necessarily intuitive, and it takes a demonstration such as this to make that point. Thanks again for your efforts and bringing clarity to a subject that is typically confusing and often misunderstood.
You're welcome +Louis Guske, Jr. We're glad it was helpful for you.
+Mustang .308, air bags are a very useful tool when used in accordance with their intended design, which is to be a supportive addition to a vehicle's suspension. For pickups (or other vehicles) carrying heavy payloads like cargo or the pin weight of a 5th wheel or gooseneck trailer, air bags can greatly enhance the performance of a stock suspension. However, air bags do not provide weight distribution as defined by returning weight that is lost on the front axle of a tow vehicle due to the addition of carried weight from a bumper-pull trailer. Weight distribution changes the way the combined vehicle (tow vehicle coupled to trailer) carries the weight, which helps keep the tongue weight of the trailer from counter-balancing and thus subtracting weight from the front axle of the tow vehicle. These principles apply to all tow vehicles and trailers, however, each will react to a higher or lesser degree, based on their specific suspensions and the loads they are carrying. Each setup should be adjusted and fine-tuned for its own best performance.
Good luck trying to explain this to rv dealers who refuse to properly setup WD hitches for customers. They are constantly setting up the hitch allowing the front to still be higher than unloaded. I have tried to explain to countless companies that this is incorrect, but they always say the same thing "This is how the WD hitch instructions say to setup the hitch."
Your video proves what I have been saying for decades! Even with weight distribution setup to drop the front height slightly, there will still be less weight on the front axle, so how do they expect a 1/2" of ride to be "distributing" the proper weight back to the front.
Personally, I setup the WD first, then air up after. I have found it easier to get the right transfer back to the front. If I try to air up first, then I always have to let air out once the WD is installed.
+Charlie Odom, we understand where you're coming from. We spend a lot of time teaching and training our dealership's staff, it is one of our highest priorities. They face a difficult challenge with constantly updated technology from all of the different and varying products they sell, employee turnover, etc. Most do the best they can with the resources they have. This is why we publish videos like this - as a reference for their staff and for the customers using our products. We hope that every customer gains a clear and thorough understanding of how to set up and use their equipment so that they have the best and safest experience while towing.
As always, it is important to remember that not every setup should be the same. Different combinations of tow vehicles and trailers require that each setup be tailored to fit that particular towing situation. Heavy duty tow vehicles like a 1 ton pickup will react very differently to weight distribution than a smaller SUV. Be sure to follow the owner's manual when you set up and adjust the hitch, and pay attention to how it is towing. Make adjustments as necessary so that you get the best and safest tow for your particular setup.
Charlie Odom
I believe most people don’t understand how to first set the angle of the spring arm pockets below the ball. If they don’t start the tension of spring arms early enough (low enough) you end up with inadequate tension and too many chain links have been dropped off leaving the spring arm WAY too high alongside the tongue beam, which will bind up the whole system in a sharp turn.
Super interesting to see real measured numbers, and how the loads on vehicle tires change, depending.
Thanks for watching! Glad you found it interesting.
This is the best video explaining both the Distribution hitch & airbags. Thank you
In Summary, use the correct tool for the job. Air bags serve a purpose, but not for what most people think. The way these guys have it setup, using the WDH, and the recommended air pressure in the bags gives for a smooth stable ride. Note they did not try to add air in once the WDH was set up or they would defeat the purpose of the WDH. Good job guys. Manufacturers put a rake in the pickups for this specific purpose, when loaded properly the truck levels out. When hooked up with a properly set up WDH, the truck levels out. With a little more tweaking, I would not be surprised to see them return 100% of the FAW and level the truck to nearly 0 on their meter. I use a Blue Ox on my F150 and it is setup to return 100% FAW, and is nearly level front to back, plus it reduced GVW by 400 pounds.
In short, if you need air bags to carry the load, you are overweight, get a bigger truck! They were spot on with overloading the rear axle. Most 1/2 ton have a 4000 GAWR! Things go boom when you overload it!
By changing the height or angle of the ball, and by using different links on your chains you can move weight around to add or subtract weight to any axle and still keep your ride height level on the tow vehicle and the trailer.
Nice setup with the scales and the video production. The presentation of factual information is helpful. What is missing is a follow on discussion of other factors that could change the distribution by similar amounts. During a trip pulling an RV passenger, fuel, water, and food loads are worthy of consideration. The load distribution hitch will too its best to accommodate the live loads but the addition of a discussion on the subject would improve the value of your work. As a check on your work you could list the total weight on each comparison slide. Also discuss the impact on ground clearance by the addition of the load bars.
Forgot to add that the live loads are going to be different on the road out then on the return.
Hi Pete! Glad you enjoyed our video. And thank you for your follow-up advice! We will take that into consideration when making or next video!
Wish I could give this vid two thumbs up, awesome job guys, simple and to the point. The wife and I are in the process of putting a 7790 lb travel trailer with 1000 tongue weight behind our Ram 1500 with a hemi, the weight is right on the max but this clears things up nicely.
Thanks David! Glad you found it so useful. As always, make sure your equipment is rated to cover all of the weights you will be towing. Good luck! Let us know how it goes with the new rig.
>This is quality short video towing for dummies made simplier & u do/did all the math. < A bit of both 1st this adjustment of load on trailer usely right over axes or if needed 40/60 just on & behind the axles of trailer. mostly 1 & done based on trailer normally towing. > ^Last after connecting trailer level out fine tune so truck & trailer r both level & give it a low speed test drive & if poss over speed bump. Should b good to go. Air bags & bigger springs & shocks won't make a 150 n2 a 250 or 250 n2 a 350 or dually though.
Cool project. Very analytical. I was considering adding air bags along with my weight distribution hitch, but your engineering project has showed me that it really is not necessary. Specifically, as you mentioned with a comment below, the air bags change the dynamics of the WDHS. Furthermore, air bags have a tendency to leak (not all the time), so even if the WDHS was adjusted to account for the change the air bags create, the potential for leaks and the changes that could follow don't seem worth it to me. Thanks for sharing with all of us!
Yes, but most people are interested about using both systems. Why not bring that part up? I don't know many people that just one one vs the other, most realize the importance of the WDH systems, but it would be nice to see a summary of the advantages/drawbacks of using both systems in tandem (and the best way to set them up if doing so)
Next time we'll have to include using both at the same time in a future video!
I was wondering the same thing.
From what I read, using bags along with WDS diminishes the benefits of the WDS both from sway and weight distribution perspectives. I can't explain why or if it's even true, but that's what I read.
Totally agree
great video guys, thank you very much. I was bouncing back and forth ( no pun intended) between either or. I will probably do both. the weather can be great when I hook up but as soon as I pull out the driveway the wind kicks up another 20mph.
Chris Dean,
Thanks for the comment. Having both would be a great setup. Good luck!
Should have filled the bags with the WDH, to see if it makes things better or worse, or stays the same
Thanks for the idea!
Great info guys! Thank you! I've been considering putting airbags on my new 3/4T, like I did with my 1/2T, but now I don't think I'll spend that money. Seems like a weight distribution hitch will work much better for my normal applications.
Glad we could help! Thanks for watching!
@ Dave Dreyer ...Only go with Airbags if you decide to tow 5th wheels and/or Gooseneck trailers. I got Airbags on my Chevy Duramax and have not noticed any major benefits when towing my 10,000lbs TTRV because I already have the WDH system and Sway Control Bar. But I'm selling my TTRV and buying a luxury 5th wheel.
great video. weight distributing is almost mandatory for vehicles pull heavy weight (similar weight to the towing vehicle)
We agree completely. Check your vehicle’s towing capacity, either in the owner’s manual or on the receiver hitch. It’s almost always double when using weight distribution vs. weight carrying. Towing with a good weight distribution/sway control hitch like the e2 hitch [fstwy.co/e2] is the safest and best way to tow a heavy load. Thanks for the comment!
I use both! I have a 26 ft pull trailer and a Ram pickup with about 800 lbs cargo in it. The Airlift bags are nice to have to keep level even with the equalizer hitch.
Glad to hear the setup is working well for you. Thanks for the comment!
You use BOTH at the same time except for short distances you can get away with just airbags and if you need more movement when towing off-road
Good demonstration. Help to clarify the weight distribution between the two methods of air bags and weight distribution kit. Timely info for me as I am in the process of purchasing a travel trailer. Thank you guys.
Wow...knew there was a difference, but more than I had assumed. That magic 50/50 weight distribution on the towing vehicle is MUCH closer with the distribution hitch.
Bummer they won't work on an off-road trailer, so bags it is...but when I buy my boat? Yep, know what I'm doing!
Wonderfully informational, and professional 👏 you answered so many questions and saved me lots of money. You just can't beat actual testing. Thank you fastway.
Thanks for watching!
Put enough air in to squat an inch and a half to 2in. Then, engage the distribution hitch. It should be a combination of the 2, not just one. You'll gat a better ride.
Finally I found the right and clear explanation. Thanks for the effort
You are welcome! Thanks for watching.
I use both on my Toyota Tundra towing a 7000 pound trailer. Works great!
Great video. New to the towing world here. I have a weight distribution hitch and air bags. I wish to use both efficiently in order to have the safest ride possible. Any videos on how to properly use both?
We've got a video in the works on this that will come out this year!
Three things to remember for a safe towing: 1. Never go above your vehicles GCWR( gross combined weight rating) ; 2. Keep your trailer weight distributed, so the thong weight is not over what's supposed to be; and 3. Keep your speed below the speed limit on the highway ( California mandates 55mph for anything that has something in tow- for your safety).
Great video guys! Glad to see that people are watching it. Kudos to you sirs.
Thank you!
Great video. Proved weight distribution is superior. Also packing your trailer strategically for trailer weight distribution is very important. Great job guys.
You are correct, proper trailer loading is a critical component of towing safely. Both weight distribution and air bags are good tools as long as they are used properly and for the job they were designed to do.
I would love it if you would have done one more test, after equalizer hitch, put a little air in, see what happens
Great idea! Thank you for suggesting it!
Excellent video, Thanks guys.. I now understand my airbags on My 2015 TRD offroad are not even needed now when towing my trailer, (actually they are the wrong approach) I will only use the Weight Distribution hitch, this style hitch makes a HUGE difference when towing. From Slightly scary to NICE Controlled ride. I do use the Airbags when hauling loads of wood stone etc. in the Bed to level it out.
Glad it was helpful!!
With the weight distribution hitch being connected from the hitch to the tongue of the trailer using the ball as a fulcrum it would be interesting to have a scale on the ball to see how much more stress the ball is under.
The force between the hitch ball and trailer coupler can increase by about 2.5 times the amount of the original tongue weight. Makes it important to use grease on the hitch ball!
This video is fantastic just bought a toy hauler after using a truck camper with Timbrens wasn’t making much sense why I needed one of these hitches until watching this video
Glad you found it! Thanks for watching. Good luck with the new rig.
Why not use both - airbags AND weight distribution hitch which is exactly what I use.
Thomas H,
Both working together is a great setup.
Agreed Thomas H....I have used both with my Toyota Tundra. Will use air bags and Andersen weight distribution /anti sway system for my 2017 F350/Arctic Fox 26X. Will also have a 2018 RZR S1000 on my Diamondback utv system. I think this will be the ultimate way of solving these problems.
Bryan Long. Question here. Do you inflate the bags then the hitch or hitch then bags
+Niko Gonzalez,
We recommend having the air bags inflated first, then setting up and adjusting the weight distribution.
FastwayTrailer Thank you for the great video and information.