35s, 37s, 38s or 40s? The Truth About Tire Sizes and Picking What's Right For You
HTML-код
- Опубликовано: 30 апр 2024
- Every day we get customers asking about what tire size to run on their truck, so we made this video to break things down, and share the truth about the pros and cons of running 35s, 37s, 38s, and 40s on these newer Ram and Ford HD trucks.
#cjcoffroad #Ram2500 #fordsuperduty 
Авто/Мото
Wheel and Tire Fitment Guides:
2014+ Ram:
ruclips.net/video/IYSQCtdD-9M/видео.html
2017+ Ford:
ruclips.net/video/git35FpC-5o/видео.html
2003-13 Ram:
ruclips.net/video/rkljYKtGuEA/видео.htmlsi=nmGM9UYAeNA-MGzn
What about tire width. I’ve seen you installing 12.50’s and 13.50’s. How much more trimming is involved for the wider tires and what if someone wants a narrower tire with little to no tire sticking out?
Thanks
You'll provide absolutely great information.
I'm 58. In the 1980’s I was in high school and people were really getting into lifted trucks in my home town. I started designing and making lift kits in the 3-6” category for Fords, Chevys and Toyotas. As you know… lifting trucks can be a lot like any passion… addictive and if one isn't careful, its possible to lift too much or go to the extreme. I ended up with 18” of lift set up
For 44” monster mudders.
Whats amazing is how little HP and Torque the 1/2 ton pickups and Toyotas had back in the 80’s and 90’s. We had install 4:56 or lower gears and truth be told, we still lacked sufficient power or at least relative to today's pickups.
I love this nation, how small businesses and people with a passion to modify and make things “all their own” is a common daily event.
I have to say…. I struggle with anything much larger than a 3” lift and 37’s on an F-250/350. When I was young.… it wasn't a big deal but now, loading up a truck with 6” of lift and 40” tires is a pain.
That being said… to each their own. All I ask is that people do it right and then really learn how the modifications have changed the stopping and emergency maneuvering of the truck. We all owe it to one another to always think of safety and the consequences of our actions.
Thanks for another great informative video.
That's why everyone wanted a big block in their lifted trucks back then. Even back then those old 460 Fords and 454 Chevy's made just over 400ftlbs of torque, usually a relatively low RPM and they could handle spinning larger heavier tires better, small blocks and V6's that we're lucky to make 300ftlbs of torque and usually under 200hp in those days struggled a lot more as you said.
I grew up in that same era. I remember people my age (and much older) installing some pretty shady lifts and stupid big tires the driveline could barely handle…..I had a couple cool trucks and the biggest tire I had was a 35”…..that was considered big back then…now people are trying to run 40s on the streets. 34”-35” is pretty common now days and tire technology has come a long way for ride and stability…..I’ve been a Ford tech for 16 years and have seen some pretty horrific issues from even good suspension lifts…they can really change the geometry if someone isn’t careful…..I can’t count all the times someone would bring a vehicle in under warrantee complaining of a driveline vibration after a lift was installed…😅
Back in the 80s I used to race dirt bikes watch porno and drink whiskey, now I watch truck videos and drink lemonade .......
I just use the stock 53" Michelin ZXL double-beadlocked tubeless runflat tires on my 2007 ex-USMC MARSOC Raiders AMK23 MTVR armored 6x6 gun truck. With 1,550 foot-pounds of torque from it's 12-liter (732 cubic inch) CAT intercooled turbodiesel, it does okay...
Back in the 80’s I had f250 6” inch lift with 35’s was my favorite look.
My brother had a 88? F150 reg cab with a 6" lift & 35's... even had the 300 I6 and 4sp granny tranny!
Went with the 35's simply because I wanted a matching spare that would fit in the stock location. Compared to the stock tires I'm quite pleased.
And more room for the tampon dispenser. Awesome choice my brother!
Of course there’s a hitch change out that allows a 37” spare
This is very relevant and I agree with you. I've wondered whether a Ram on 37's could have a full sized spare if it was deflated and stored. Anybody know if that works? I think it should have been mentioned in the video, but was a point that was overlooked.
@@rbljackson you don't need a full size spare. If you do because you're overlanding, throw it in the bed. If it doesn't fit in the bed with your gear, don't buy a baby truck with a 6.5ft bed.
@@rbljackson Sadly there's no room on the 2500 platform due to the rear track bar. It's very cramped in there at full suspension compression!
Excellent run down, thank you! 35's on 17's. '18 RAM 1500. Eibach / Bilstein 3/1 level.
Better on and off Rd than stock. Love this combo. Thx for the advice a few yrs back.
Lake Havasu 🌞 Az
Always really informative videos. Great work
Excellent video, and I was one who emailed one of these questions as well. 2022 Ram 2500, Carli 3.25 with 37x13.50s. Perfect fit and look, I am thankful for the recommendation to go with the 13.5 over 12.5. Stock gears on my rig are 3.73s, and I was a little nervous on the towing front. There was an initial feeling of light sluggishness from a stop, very minimal braking. In my gear ratio case, highway towing improved significantly. Combined fuel economy is down 2mpg, a price worth paying for the improved performance. Time will tell if a gear ratio change would be worth it.
Your videos have been very informative to not only myself, but I’m sure a ton of people out there either in the workforce or just enthusiast. Thank you very much.
Also a quick note anybody to even utter anything regarding fuel mileage are out of their mind ha ha you step into this game that goes out the window… Get a cyber truck ha ha ha ha thank you sir.
We appreciate the support!
Got my suspension components and Method 704HD 17x9 +18mm wheels and other stuff from CJC. Great folks to work with. 😀 Ended up with Toyo RT Trails 37x12.5x17 tires and they work great on the 2024 Ram Power Wagon (aka Red Beast Wagon). Lots of videos on my YT channel on the build and a few offroad trips if interested. At any rate, I think 38s would well on this truck as well as it still has plenty of power with the 4.10 axles and the 8 speed transmission. After I wear these tires out in the rocks, I may go to the 38s (will have to do a little more work on the inner fender pinch weld, etc). The Falken Wildpeak RT 38x13.5x17 looks like an awesome tire to go with for me next time. Who knows what else might be available in the next year or two…. Again thanks to CJC Off Road for providing great advise and equipment.
You guys have so many helpful videos. I'm shopping for a new Ram 3500 or possibly a 2500 right now. I'm definitely planning to consult you guys for lift, tires and wheels once I pull the trigger.
Always happy to help when you're ready!
Wow awesome video, thank you. I learned a lot.
Thanks Cody!
You make a comment about how 37’s are at home with modern day diesel trucks. What about the Godzilla?
That did answer some of my questions. I have f350 1 ton. I put 37s on it and that’s just not enough for a truck that big it has a 6 inch lift. I had to modify the fenders openings make Sheet Metal wheel houses because the old fender liner wouldn’t fit after modified everything. It looks OEM. As I was a autobody technician. So I did a good job.
My next step is going to be 40 inches. The truck is a weekend warrior. I don’t drive it much at all. Sometimes it sits four months. But my next thing is, I’m doing the Hydro assist and putting 40s on it. Then I’m gonna get some gearing done. It’s a lot of truck that’s why I want a lot of Tire. It is 08 but there’s only 140,000 miles on it. So mechanically, I think I’m OK with doing that to a weekend warrior. Although everybody knows those six point fours can be problematic. as last year, I had to change the turbo,EGR coolers, sensors, water pump thermostats clutch fan. Stupid DPF.
Otherwise, I’ve had that truck through Ford ice in California and all kinds of other trails I probably should’ve not have been on.
Thanks for the Tire info. 😊
I run 35 KO2 on my super duty. Great wearing tire that looks good on.
Thanks young Drew Carey! Very informative
I had you guys swap my 35s to 37s after a week on my ram. Also had your recommended gear guy do the 430s on my ram. 👌
Tires are like TV's these days, you buy a 42", then you want a 55", then you want a 65", wow that 75" looks good - but the 80" is out. Bottom line never satisfied.
Best video on the subject. Thanks
Glad it was helpful!
When I bought my 2020 Power Wagon I immediately jumped from 33's to 35's. Just a slight handling difference. I had E rated Duratracs in 35. I recently went from those 35's to Toyo 37's with Method wheels, HD704 from CJC Off road. I feel the Toyo sidewalls are a little stiffer so they honestly don't handle much different than the 35's. Just a little trimming. Very pleased!
Solid video
When i get the money i am definitely going to CJC, so i can say i got my truck lifted by Ralphie from A Christmas Story 🙌
This actually made us all laugh out loud hahaha
Every video I can picture him rubbing a lamp made out of a shock. 😏
@@aarongonzales5106 HAHAHAHA That was good
Ive got a 06 c4500. If your looking for a 40 with load capacity. Goodyear MSA in 335/80/20 is f load range at 6345 per tire andcare speed rated to 81mph. I run the 365/80/20s on my truck. Continental has tires in these sizes also but are only speed rated to 68mph.
good stuff!
I've been missing more Tremor build videos!
Would really like your input on tire size for the Godzilla and performance with tire sizes.
I have an 05 Ram 2500 with a leveling kit running 35x12.5r17 tires. I still have the slightest rubbing on the driver's side when parking, but besides that, truck's got a stellar ride, and doesn't lose its ass when trying to merge onto the highway (I'm not running a tune)
Thank you.
38” WildPeak ftw! So far on 2500/3500’s these have been the best handling and comfortable for towing.
Irun 35s on my gladiator. Its big enough for me to get more ground c!earance. I didn't want to regear my difs. With the MOPAR 2 inch it works well in Alaskan winters.
Maybe a video on the different load ratings of tires and what to look for when shopping for larger tires on these trucks
I have an ‘04 Ram3500 manual with 456 gears and want to go to 40’s. I’ve been running 37’s since new (with 6” suspension lift) and now that I no longer tow a big fifth wheel with it, I think 40’s will pull a gear better. Truck has been a garage queen for most of its life, only drive it on nice days now
I have maxis razor mts 40 x 1350 on 20 inch wheels and they are great all around. 2018 f350 dually
I pre-ran the pro course of the SCORE Baja 1000, the toughest off-road race course in the world, using 285/70R17 (33") tires on a two wheel drive pickup with no lift. I have to laugh at what some pickup drivers think is "necessary" for the solo slabbing and mall crawling that 99% of them do.
I’ve always liked 37s on big trucks….usually requires a slight lift so they don’t rub
The clinical name for this issue is called "Tire Envy."
It's a real and serious condition.
I’ve always wondered what Toby from The Office did after the show
I knew when I ordered my truck I was going to go with 37's or 38's so I ordered it with 3.55:1 gears to compensate.
I run g rated 365/80r20. 44” on my f450. Daily driver. Towing a 28 footer atm. 4.5” commuter lift
I've got a 12 2500 with a Carli 6" lift. On this lift I run a Toyo RTs in a 37x12.50r20, got 53k miles in these tires and still have good tread left. It's all about tire pressure and alignment
What tire pressure you usually run on your tires?
@@jovanemontes80 I run 50 front and 45 in the rear
@@jovanemontes80 If you need help on tire pressure, give this video a watch: ruclips.net/video/x_ainXkVKrA/видео.html
Have you guys ran any Yokohama Geolandar M/T GOO3’s in the 40x13.50r17 D Load? I’ve heard so many good things about the Yoko G003’s and in that size they still have a 50PSI 3195lb limit and they’re only 87lbs!
Waiting for July 4 hopefully some discounts on Mickey Thompson Baja boss at 37/12.5-17
Ram 2500 cummins regear to 4:10’s your trans will thank you very much. 3500 guys don’t have to worry about this as much. With a voided warranty randys transmission baby maker kit without tuning also very good option running 37’s and up 👍🏼
Nitro 430 gears with the weaker ram 2500 trans.
Any recs for a lifted E450 Skoolie, looking for a 35” All Terrain for 16” rims?
On the newer ram 2500 is fitment the same on both rear air suspension and coiled trucks with a carli 2.5 level kit? I have a 24 ram 2500 with rear air suspension and want to do 37s on 18 on a carli 2.5 pintop level. Will they fit?
What about those tires with no sidewall, opinions? How about gas mileage? Truck already gets bad gas mileage, how much worse?
What about the stress on the transmission on the rams do you regear or upgrade the transmission
Getting ready to buy a Ford 350, I want to put 38 x 15.5 with a 6 inch lift. Can I do this? Thank you
What 37's do you recommend on a 6.7L 2023 King Ranch with 20" factory rims? I like the color match factory wheels and don't want to stick out much because my place is three miles down a gravel road and don't want to throw rocks on the side of my truck. Thanks for the great content!
You'll want to use a narrow all terrain like a Toyo AT3 or Falken AT
I have 38s on my 69 Ford F-250 4x4 it doesn’t even have a lift kit on it I think try are just harder on the brakes.
I would have mentioned gearing, that makes a huge difference in performance.
We touched on it briefly in the video!
I have a 23 Ram 2500! It’s my everything truck…. Work, play, business meeting, etc!
I was thinking of going with the Carli Leveling kit that you have, with Nitto Ridge Grapplers 37” x 13.5” & 22” x 10” Fuel Strike rims! What do you think?
That sounds like a perfect plan to us, minus the wheel specs. You'll have a tough time fitting 37s on a 10" wide negative offset wheel! To fit 37s on a Ram truck we recommend a +12 to +27 offset wheel that is no wider than 9.5”
Well stated
I’m running 37s on 17s on my 3rd Gen. Had to trim the wheel wells but damn they look sweet……. 35s looked a little too small
My neighbor has a truck with a two foot lift and I believe his tires are 50-52's. It's insane.
These changes aren’t really noticed on these newer 10 speeds transmissions though, 38s on up (towing) on a pre 2020 with a 6 speed is completely different, now your getting into
re-gearing
Although 38x13.50x18 look really nice
Those 40's look killer
What about balancing the larger tire/wheel combos. Weights or balancing beads? I hear different things from different shops and I'm curious where you come down on the subject. Discuss please.
We always like to use traditional stick on weights. If that doesn't do the trick, then we use the Centramatic or Balance Master balancers we sell on our website in addition to stick on weights.
For my Silverado 1500 33s with a 3in lift is perfect. Still tows fine and didn’t completely kill mpg (avg 16-18)
Micro tires…perfect for city folk…
@@markymark959 feeling insecure today?
That’s a good OEM+ look.
Did you get aftermarket wheels or did you stay with stock wheels?
@@leo-ub6nb I kept oem wheels
Love my 37s on my 2500 ram.
37" definitely affects the power and stopping of my F-250. I have a 2020 F-250 with 35" and normal output 6.7 diesel and I have a 2023 with HIGH output and 37" tires. The 2020 with normal output is more responsive and faster than my 2023 HIGH output 6.7 and I assume that is the 37". They both have the same axle ratios.
Any Intel on more 11.5" options than the Ridge Grappler that can run on stock 22 Tremor wheels with 37s? As a fellow Atlas Blue BAP owner, loving all the shots of that truck...I love my stock tremor wheels but seems like I literally have only 1 tire option!
While we haven't tested that exact configuration for clearance, the new 11.5 options are awesome for squeezing 37s on trucks! Our hunch is that it would be possible if you added Carli radius arms and a Carli sway bar for some extra room. Also make sure to watch clearance with your brake lines.
I like my 37s but the spare has to go in the bed and it isn't light weight. With the Carli suspension + 37s on 18-inch wheels, my RAM 2500 rides like a Cadillac. On long trips, I lost about 2 MPG with the larger tires.
factory gears? 3.42 or 3.73?
I run 33 Falken’s on a 2500 diesel Ram…perfect tire. The truck is smooth, mpg is great and offroad capability is excellent. The max I would go is 35’s. Everyone has an agenda for me it’s overall performance towing, mpg and usability. The 37 trucks is an easy pass.
Another great video! I have a 22 Ram 2500 6.4 hemi with 3.73's. Currently on 35's. Would I be unhappy if I jumped up to the 37's since it doesn't habe the 4.10's, regarding acceleration? I know my mpg will be affected. Thanks
Not really and we say that having gotten custom gears made for our Power Wagon when we moved to 37s just to test things out. If we could do it again, we'd just stay with stock gears and keep it simple since it's got an 8 speed transmission that does just fine keeping the engine in the right RPM band.
@@CJCOffRoad Thanks so much for the reply and information! Appreciate it.
What about 34x10.50R17?
I really wish with the ram trucks with the air suspension that if you offer a 2 inch lift for the front I want 2 inches of lift for the back. If I want the truck to ride level I will hit the alternate trailer height button on the dash.
We offer air specific systems with 2.5" front and 1" rear lift or 3.25" front and 2" rear lift. Both result in a level truck!
Where are those desert trails in the video?
Let’s talk about that black Ram 1500 behind you tho! 👀
I noticed a slight lost of acceleration going to 35’s on my 22’ Ram PW. So a little concerned about going to 37 or 38’s tire. Are there regear options for my truck?
There definitely are!
If you want an easier and cheaper alternative, at least for the time being, I’d recommend a tune. I went with 5StarTuning but there are plenty of e-tune suppliers. It was like $500 for the tuner and I was able to load up 5 tunes on it (2 come for free, $10 for each additional tune). For whichever e-tune shop you choose, they’ll ask for specifics about your truck, like gear ratio, wheel and tire size, and any other performance mods you’ve done. A few days later, they’ll email you or send it to your tuner directly via internet connection. It depends if the tuner you purchased has WiFi or not.
At first, my truck (on 35s) felt sluggish and the engine felt like it was being overworked. I got an e-tune and it was a day and night difference! It felt much better, even from stock. Definitely got more pep and the engine feels like it’s just running good overall. In the end, I still want to regear, but for a 4X4, it’s almost double the price (twice the parts).
The only thing is, your truck will have to relearn its shifting behavior (it’s based on your driving habits), so the first few hundred miles, you might notice some harsh shifts. It’s not anything overly harsh or anything that will damage your vehicle. Even when you first got the truck it more than likely went through that calibration without you even noticing. For my truck, it takes 400 miles before it fully learns the shifting points based on the driver’s driving habits, and calibrates itself accordingly.
Even if I got a regear done, I still would e gotten a tune afterwards. But the e-tune is much cheaper, versatile and customizable due to you being able to pick multiple tunes and load them up to the truck for whichever you feel like using. They’re not “on the fly” tunes, as you can only load 1 tune at a time to the vehicle, but they’ll all be stored on your tuner. And when you load one up to the truck, it can take anywhere between 5-20 mins. The first time is usually the longest.
I know my post is long, but just trying to give you as much info and what to expect, if you do go that route.
What about the automatic transmission shifting based on factory settings fir a 34” tire when you put on a 37”?
The answer to that all depends on the truck, driving style, factory gear ratio, and TCM. For example, 14-18 68RFE Ram trucks with a 3.42 gears typically need gearing when you majorly step up tire size. Newer 2023+ Fords have a smart enough TCM to figure out shift points with the new tires and adjust accordingly, especially if they have a lower factory diff gearing.
I was about to email you guys about it 😁 . There is no need now. Thanks for the video.
That was exactly the idea of this video! It's such a common question so it was about time we addressed it.
Some wheel and tires sizes just don’t look “right” on certain trucks.
Yup I run 40psi front 35 rear
If you placed a 4" taller tire wouldn't you want to add 4" on the rim? On a truck, can you run lighter metals for the rim to help reduce weight?
No, since half of that tire height is above the center line of the wheel. On these trucks the small weight savings of a forged wheel etc doesn't really make an impact. It's maybe a pound or two at most.
I say depends on the truck!
IFS Tacoma? 35s
F450? 40s lol
Can you put 35” tires on a stock 2021 Ram 3500 HO with 8’ bed?
For my first set of tires where 35s and my second 37s, for my third set they will be 38s
Sounds like the standard progression! haha
37x13.50R17 for the win 45-40 tire pressure front rear unless towing. Carli for the win 🇺🇸🇺🇸🇺🇸
Yup I run 40 psi front 35 rear
@@fergotti I’ve been debating dropping another 5 psi going to try it out
@Sdukes001 if you go to carli website I'm pretty sure it recommends 37s on 17s or 18s on toyo mts at 40psi and 35 rear. I've had several people mention how smooth my truck rides. I only have commuter setup leveled
We have a whole video on tire pressure here: ruclips.net/video/x_ainXkVKrA/видео.html
I have a 2015 Chevy Silverado 2500hd with the gas 6.0L. Would I have to rear gear my front and rear dif if I went from the 35s that I am at now to 37s??
That honestly all depends on your driving style and usage! If you're hot shotting with the truck probably, but if it's just a daily driver and off road rig, most likely no.
Ok, I also plan to put a 2.3l whipple supercharger too at some point
I have a 5th Gen 2020 ram 1500 stock. I have 18 inch wheels and I want to put the beefiest tires on them without any issues. Any recommendations? Should I change the wheel size too? Also I tow with it.
We recommend an 18x9 wheel with -12 offset and a 35/12.5/18 tire.
Personally I think 35s are 👌
Me over here on peasant 32s...
Why never a discussion of regearing? Is that a diesel vs gasser thing? I know in the gas it makes a difference in mpg and lower end torque if you surpass the range of ratio.
On these new 8 and 10 speed trucks, there's really no reason to re-gear. It used to matter a lot more with the old 4 speed third gen Rams and trucks of that era.
@@CJCOffRoad do you guys offer regearing if requested?
@@M4c223c Absolutely! Not in house, but we work with a great local gear and axle shop that specializes in just that if any trucks need gear work.
But how many actually off road them versus pavement princess? Did this with my trucks as a teenager and before the kids came along, my bride and i used to go mudding instead of a night out on the town date. She had a 1989 gmc 1500 4x4 with 5 speed manual transmission and and i had a 1982 f150 with the NP435 (granny gear) 4 speed manual transmission. My 2015 has a G56 6 speed manual transmission on stock tires but it's a drw that i pull with.
Virtually none of them are used for any off-roading that a stock truck couldn't do.
I’ve got 37s on my PW and a Carli pin top system
I wheel the hell out of it.
Anything over a 37 would be over kill and in my opinion, obsolete.
I would have to change gears,breaks and do tons of trimming.
Not worth it for me.
Also,
The only 40s I’ve seen on trucks have been pavement princesses.
Just sayin.
What about 37's on 7.3 gas Ford with 3.73 gears. I've got 2 1/2" level. I'm sure they will fit, but I am concerned about power? I don't pull heavy very often. At most 10k occasionally. 10 speed transmission.
When will get a video on that 3rdgen shop truck you guys are building 🫨👍🏾
We're just wrapping that build up and will make a video as soon as it's done!
Can’t wait I did the short arm dominator step up but long arm set will happen in the future!!
did not mention that increasing your tire size will reduce your towing capacity.
Tire size change alone does not reduce capacity.
This guy has to be the love child of Drew Carey & Rick Moranis.
Putting bigger tires changes the gear ratio. Everyone lifts these trucks and put bigger tires and don't change gears.
Haha. You can go do that but anyone who knows anything about these knows that is not necessary.
I literally have a bowtie in my pfp. Why was a Ford/Dodge video recommended to me?
I wish there were more 38 13.50 load range E tires for 17s. Majorly lacking combo there
38s in general are super limited in terms of sizing! Hopefully that changes soon.
@@CJCOffRoad I hope this changes soon!
It’s not possible. They’re already capped at a 128 load index for D/8 Ply. There is no reason to over index at that point with such a large amount of weight rating.
@PRV392 I see what your saying, but I can't imagine with the large truck market as big as it is, them not figuring it out. Getting a large, capable tire on these big trucks that support their weight rating would be attractive to a lot of people.
@@BoZoneFreeders As they stated in the video once the sidewall starts getting large enough where 17’s on 38’s & 40’s start with a lot of squirm and lack of steering input it is hard to cater for HD pickups. 3/4 - 1 ton’s do not need 10 and 12 ply when the factor is only overall load rating (3195-4680 etc). They don’t need 80 psi to allows achieve.
How about all of these highlift trucks with big tires adjust their headlights you’re killing us in the cars
Personally see no need to go bigger than 37s. The options for tires get lower when you go to 37s and larger. The price of tires only gets worse. Theyre usually loud. They dont wear that great on the highway because theyre a softer compound tire. They are really heavy. My tires are a metric size but come out to 36x13 in. And they are 80 lbs a piece. Theres not really much need to go bigger than 37s. With 38’s… whats half an inch really getting you..
Agree 100%
In the mid 80s it was all about 44s on 16 inch wheels!
Does anyone know what wheel that is at 3:34 mark?
Look like method 315s
Those are Method Double Standards: www.cjcoffroad.com/collections/double-standard
#38”s
What have you noticed on MPG on 40's on the superduty with the HO 6.7? Would it drop sub 15 mpg on hwy?
It's actually tough to say since at this time there's no way to correct the speedometer and odometer for the 40" tires. If it was our personal truck we'd be able to do the math, but as a customer rig we didn't get enough time with it to know.