I wondered why the outside axle bearing in my LSC went bad. Now I get to chose between too much and too little. BTW pain in the ass to change. Traction lock.
hell i can't wait for the last episode myself.. something tells me.. he's gonna design a cover and price it to recover some of the cost of this research.. which is a lot.
Maximum respect due Gale Banks. Not just to make everything he touches faster, but to understand how and then make it available to the public, he deserves a medal ( to go with the coin ).
I feel I went from 0 to 10 on learning and understanding what's going on under those diff covers and I've never considered myself mechanically inclined. Great teaching!
Wow Gale , I’m a retired CATERPILLAR mechanic. I just stumbled across your channel. This video should be required for all mechanics. I concentrated mostly on engines but did rebuild differentials and all other components. This was extremely interesting. Looks like It’s gonna be a binge night. I’m especially interested in the 2020 duramax series. I’m probably gonna buy one later this year. I’m a little Leary of the first years of major design changes though.
What a legend. Still waking up every day wanting to improve and learn. He's such an inspiration. I would give anything to be that devoted to a cause. At that point, it isn't work anymore.
Mr. Banks, Thank you for investing in an open honest evaluation. Maybe this testing will lead to a Bank's diff cover that truly performs better than stock.
Just looking at Gale Banks and hearing him talk with such confidence makes one stop and say, "This guy really knows what he's talking about." Thank you for sharing Mr. Banks.
I do it once a year in the front and rear axles of my truck. Might seem too frequent, but it gives me a chance to make sure the gears and bearings are okay, and to catch a problem early before it turns my axles into grenades. Also the T-case and transmission get new oil/filter.
I know this has been a large investment for your company for a product you don’t even sell. Just know you are really educating the industry. Please keep these kind of videos coming. It just strengthens your brand for honest quality products.
Mr. Banks, I appreciate this video and your “test and prove” attitude. I feel I went from 0 to 10 on learning and understanding what's going on under those diff covers and I've never considered myself mechanically inclined. Great teaching!
A man after my own heart. I work on industrial process and test instrumentation. Consistency and repeatability are the cornerstones of an excellent test (along with consistent test methodology)
Gale Banks ! Thank you for this most informative class and video on where differential fluid goes ! I have been reading about your company for what - at least 40 years or more.. I am so grateful for all your hard work, and for your family sharing you with us over all this time. I hope that you and yours will always be well..
No one does! They definitely test everything and verify all results! My only beef with Banks is the Derringer for my truck isn’t released yet and you got yours way before me Joe! 😂👍
Nobody even comes close. BUT All the big three light diesel U.S. truck manufacturers buy technology or parts from Banks, so is it really "aftermarket" ?
Most rear axle vehicles I have to repair on the axle side including my own it's not all that simple but please let me explain, first it depends on the terrain the vehicle is used flat level roads it's all okay to have the correct level and all so if you do high enough speeds, but I do field repairs on farms that sometimes take me to spots that well is so hard to get that 15mph is speeding and have to be in low range 1st gear for several miles with sometimes sloped badly to one side and had previously a bearing failure on the higher side of the axle. Now I've learned that if you do any off roading with slopes that is to the side it's best to over fill axle but in this it creates another problem and that is with high speeds foaming is a problem so you have to sacrifice. But don't just run and overfill your axle just yet just because you're doing a 10 yard slope to the side at 10mph as there'll still be enough lubricant to protect your axle side shaft bearings. Hope you will find this helpful. Oh I've been a field mechanic for 26 years and just something I've picked up over the years.
@@danmanthe9335 the phrase is overused, unoriginal and doesn't convey anything of value. It's more genuine to just offer someone thanks without sniffing their balls too. Just saying.
Yes it does. He is saying that he respects the tremendous knowledge Mr. Banks has gathered over his lifetime. If you continue to struggle to understand or make inferences, I'll try my best to help you out.
Mr. Banks has my most sincere admiration. He has been building amazing machines since I was getting started in the mechanic business in the mid 1970’s. Well done sir. I hope to meet you someday. I would like to know his oil and lube preferences and I’m sure a lot of people would also like to know! For both gasoline/turbo, and diesels! Keep up the stellar work! God bless!
Mr. Banks, I appreciate this video and your “test and prove” attitude. While I agree with you that the flat backed covers are a terrible design, one thing I suspect that might differ from what you are suggesting at 6:40 , is that maintaining an even gap between the ring gear and cover to in fact not be all that beneficial. From working with hydraulic systems, I suspect a reduction in clearance as the oil travels up the back of the cover and over the ring gear is more beneficial as it helps the oil column to maintain the velocity needed for the oil to achieve escape velocity and get thrown into the pinion gallery.
uh yeah i had to go imediately check. and yes my money is going towards a skull cover... no odd shapes, "closely" matches factory shape, ring gear channel....check.... bullet proof...check.....cover cost...cough. knowing its money well spent priceless!
@@bankspower What banks is forgetting here is that the gear oil level must be sufficiently high enough to lubricate the axle bearings pressed into the ends of the axle tubes as well as the carrier bearings pressed onto the diff carrier.
@@texasrox2010 Wow... it's like you were stoned during the entire video... so I'll summarize: when sitting still, you don't need any axle bearing lube, but when going just 15MPH, there's so much _turbulence_ and splashing, that the axle and carrier bearings GET PLENTY OF FRESH LUBE. Graphic videos of dramatic transparent diff covers aside, have YOU ever had a rear axle bearing seize with less than 150k miles on it?... No?... then it must be getting enough lube, Q.E.D. TLDR: Mechanical Engineers know WAY more than you about proper lube levels.
@@texasrox2010 you dont know how a semi-floating axle functions. A full floating axle, like in a 3/4 or 1 ton uses the diff lube for the wheel bearing lube. The axle of a half ton does not, it is sealed at the edges of the pumpkin, and the wheel bearings are sealed roller bearings that do NOT receive lube from the pumpkin. Nice try though.
I think whatever comes out of this we may learn where we can not lose a few horsepower here in there and what we can put on a rear axle to make sure that lives a long happy life especially for the lubricant. The coolest thing of all is he's not doing this to intentionally disparage anybody that makes diff covers he's just after the fax in the information where they lead us is where they lead us. Facts don't lie. Thank God no politics here in the video or the conversation
This is the first video iv watched an this channel off the bat is amazing great job ur a great mechanic especially to a young kid like myself that is wanting to learn all about how stuff like this works i really appreciate it youve done an amazing job thank you 👍👍👍👍 this channel could really change my life
Thank you for the kind words! Based on your comment, you'll really enjoy the other episodes in this series as well as Killing A Duramax and Building A Monster Truck Engine.
Joelynn Carter as you could see, they became submerged dynamically via the ring gear carrying the oil there. While static, it drains out of the axle tubes.
I like the idea of aluminum for a differential cover to deplete the heat and keep the viscosity of the oil at a decent temperature! Can imagine how aluminum would work well when towing with a truck! Thank's for sharing!
Some Jeeps have the "heavy duty" version of their transfer case housings made of aluminum, which...I didn't fully understand the reasoning behind, until I watched this video. It's not for strength in that case, but rather because it wicks away the heat better than steel.
I would like to see what happens to fluid when it hits what he calls a step and if it really matters. What I'd also like to see just taking a rear end and attaching an electric motor to it. That way you can measure current draw at a given rpm at the rear wheels and you can run it for longer periods. It would be interesting to see what happens to the fluid after running at 60 mph for an hour or longer. Does the fluid have more bubbles or the same?
@@brainfreeze44131 THAT WOULD F****** WORK! We had a bench in the USMC (it was a USAF hand-me-down) called the MA-3 bench that was used to test generators. Again, good idea.
Having the truck on a dyno creates the similar load/friction (build heat like on the road). I suppose you could disconnect the yoke from the driveshaft and then somehow tie in an electric motor to turn the yoke instead.
Mr. Banks, great vid. Just had my 8.8 rebuilt recently, of course been looking up info. Your vid has been the best by far. I never subscribe to channels, yours will be the first.
I am in the medical field and have many peer reviewed journal articles to my credit. This guy does studies correctly. Too bad many on RUclips believe anything they see, I think this will show that looks don't equal performance.
Well, I'm a local dive barfly and have many peer-reviewed verbal rants to my credit as I often hold court at the bar and wax poetic about life in both philosophical and theoretical contexts and I thoroughly agree with you; this guy does studies correctly!
Such an awesome video! I've been a huge fan of Gale since i was kid back when he was doing stuff with the 7.3 and 6.5 long before anyone else got in the diesel game That and the twin turbo chevy small blocks, Gale is a big part of why i got into automotive. I hope one day to be able to make it out that way and meet him. To be able to shake the hand of a true icon in our automotive world. Keep up the great work guys, your passion is what keeps this industry alive!
@@bankspower What banks is forgetting here is that the gear oil level must be sufficiently high enough to lubricate the axle bearings pressed into the ends of the axle tubes as well as the carrier bearings pressed onto the diff carrier.
Without the smooth transition of the cover, over long periods with a cover without that flow direction, one wonders if the lubricant would endure extra shearing forces? Not to mention foaming and the extra oxidation.This all perfectly illustrates what engineers and Spicer and Meritor told me about the way their covers were designed. Good work and I am dying to see the results.
Jim Allen I’m also interested in this test . I believe you meant aeration as opposed to oxidation in regards to the foaming of the oil. One is Air mixed with oil, as is the case here, vs a chemical change at the molecular level (oxidation). I believe anyway.
Alexander Coburg He is correct. Air contains oxygen. Oxidisation is caused by oxygen. Aeration of oil, especially with high temperature, accelerates oxidisation immensely.
Yes, foaming is the less correct term, but maybe more understandable to more people. Foaming and aeration, of course, are a major source of oxidation and early lubricant failure.
Thank you once again, I follow things like this. Reducing the heat in the rear end is a really good thing. As anyone that works on vehicles knows heat is a killer of things if not controlled. Watching your videos has educated me in a different way. I understand the thoughts and theory of what you are explaining. I live in Alabama, summer time here is brutal on a rear differential. DoesUsing your differential cover have any drawbacks for the winter? Oh, and the applications for racing!!! My mind is going in several different directions at once!
I just rebuilt my read end on my Chevy and was alot easier than it thought it would be! Of coarse I had some guidance from my ol Pops! He is 73 and we actually went to Bessemer State College for Auto Mechanics when i was 17 to 19 years old! U treasure those days!!!! Anyway have a blessed weekend!!!!!
I dont know if you remember her but my grandmother worked for you out of Azusa from 95 to just about 2005. Her name was jane kusaka and its cool to think she worked for you and now im watching your videos, love everything you do.
Fluid dynamics is a science..... Some diff cover makers probably just saw "fluid dynamics" in a book and want to make a cool looking diff cover for the Barbie truck crowd.
This is by far one of the coolest videos I've ever seen.👍 I really like to see how things work in real-world circumstances. Thank you so much and where do I get a plastic dif cover for my 02 Silverado. 😁
Gale Banks is a man of absolute wisdom and knowledge. I really love that he has taken to this new age of free information to the public. He wants his product to help you help him help others. He also is known to admit when he is wrong publicly. So you won't have horrible customer service experience if something goes wrong if you programmed or installed correctly.
Wow!You could not have made a better video! I was gonna buy new covers,now just primer and paint👍,very informative...my eyes are opened.Thank you for taking the time to show us sir,Big thumbs up!👍👍
Thank you for watching! We learned a lot during our testing of the various covers.... enough to create some incredible innovations. You'll hear about them soon!
Anax100 vertical fins would still change the direction of flow that the engineers intended. The best would be an aluminum housing the same shape inside and outside just with external cooling fins to add a bit of surface area. If cooling really was the aim, there would be finned housings and tubes too.
@@Anax100 that would only work if the cooling increase was greater than increase in heat production caused by the shear forces introduced by changing its direction as well as the increase in shear caused by the extra surface area of the internal fins. Basically, you need someone who is _really_ on their game when it comes to multiphysics simulations which are then backed up by real world testing of some sort. Or possibly just a shit load build, test, tweak, iterations b/c those simulations could take days to run to be of any use. And that doesn't even take everything else going on inside a diff into to account. Not impossible by any stretch & ideas yours are how things improve. Just need to find the right idea. Even what many would consider a shitty idea could actually be a breakthrough. However, being such a mature design I'd wager that simply changing the diff cover isn't going to produce any Earth shattering results. But you never know. That's the beauty of R&D!!
Not trying to impose any stupid thoughts but aluminum is brittle and can bust if impacted. I work for a company that is hard on our trucks in that most of our work is off road. I have bent up a couple of different covers. Had they been aluminum they would have busted. As it was we kept going to get back to the shop with no down time. Also with road debris same scenario can happen as a brick fell off a truck in front of one truck and banged up the rear end bad. Actually cracked the pumpkin. Diff pan helped to keep things intact enough to get truck to a shop. Aluminum would have cause a catastrophic fail and possibly a wreck. This is just my thoughts on it. Shade tree mechanic here so my voice is weak on this.
Your voice is not weak on this. It is a very valid point. It is also a point that is proven time and again. Whether it is an aluminium wheel, aluminium sump, or an ali diff cover there is a big trade off. Yes, ali wheels are lighter but on a 4x4, you cannot beat a bent ali wheel straight if you damage it. Many people with ali sump pans have been disabled when a rock strike on a steel pan would have dented it without breaking. As for diff covers, the same applies. I do not think there is any viable reason for an ali diff cover. If cooling is a problem, buy an oil cooler and fan. Mounted correctly, you will not damage it. Ultimately, these ali diff covers are put on trucks because they look cool. The supposed benefits of cooling is marketing BS. In any case, the pressed sheet steel on the stock cover won't retain all that much heat anyway. Yes, ali is a better conductor of heat but not THAT much better. Especially in that application.
I’d love to see a test of different gear oils....conventional vs. synthetic, with & without friction modifiers(limited slip additives) since you have the perfect teaching tool in your clear differential cover.
No tests necessary -- ANY synthetic gear oil will out-perform ANY conventional gear oil of the same viscosity. Period. Among the synthetics, only Royal Purple has the Friction Modifiers built right in to the formula. The famous 95 MERC runs an X-Pert Performance cast aluminum diff cover, LubeLocker re-useable gasket, and 80 ounces of Royal Purple 75-W-90.
I could watch Gale talk all day. I'm not an engineer or mechanic, rather just a guy who likes to turn the occasional wrench. Love Banks' style. Always impressive.
Was rebuilding my Ford 7700 Sterling 10.25 rear end and was going to put an aftermarket aluminum cover on until I saw this video. You saved me a lot of money and a lot of aggravation. I figured the best thing to do was take the stock cover and have it sandblasted and powder coated and bolted back on with new bolts. Still got a nice looking cover but yet allows oil to flow the way the Ford engineers designed it to do.
Possibly! Its on our list, however, we are current focused on other hard parts like exhausts and intakes at the moment. If we do, part development will not start till next year.
Thanks Gale and crew at banks power, finally some clarity, insights and updates on this matter for 2021… for me what got me was keyword when doing testing and or data gathering is what Gale have said as well which is Repeatability and consistency And also eliminating factors that might affect the testing.
Awesome video... can't wait for the facts to come out. I love how you're going about it. awesome diff cover by the way. I can only imagine what the results are going to be like based off of what we saw in this video. I cant wait for the next video Thank you for taking the time money ect to do this testing. I'm sure it's been done by Engineers for automobile companies several times but they're not sharing the results and you are so again thank you.
Gale, I worked with Randy Ritchie many years ago at Foulger Ford. We had many discussions about your work re diesel performance. Great video on diff fluid flow. I always thought of diff housing as nothing more than a leak proof box.
Differential cover heat dissipation and splash orientation is a must to protect the life of a hard working rear end. I used to work at Nissan, and when people used the first generation Titan as a work truck and differentials started to drop like flies, all nissan did was to update the diff cover, what a difference!!!
How about building a clear head and block so we can see the pistons move up and down and see the combustion process and the oil how it circulates around the crank
Cavitation (air) in the lube also acts like an insulator, as it hinders thermal transfer. That's why a 7-11 Slurpee doesn't quench your thirst ounce for ounce as much as an equivalent gulp of beverage would. Therefore, a correctly shaped aluminum cover with cooling fins has my vote.
Well grammar Nazi dickhead, you missed where he said "a after market" where it should have been "an after market". That's also basic grammar but you missed it in your comment. I'll bet you feel real cool and super smart correcting people with rude comments.
@@cfltitan difference being that a and an are one letter apart and could easily be a typo. your and you're are different by means of both an apostrophe and an e on the end.
Good clear presentation. I worked with belts, bushings, bearings and they can be very misunderstood. A good circulation to cool, and disperse additives (and heat) and in a sealed system synthetic would be the way to go.
![Twenty One Pilots - The Line (from Arcane Season 2) [Official Audio]](http://i.ytimg.com/vi/XCz7WUotXs8/mqdefault.jpg)
As a mechanic, I can honestly say I have never wondered whats going on behind a diff cover. But, happy I came across this video!
You're a mechanic and you don't know how a diff works?
@@NittoNba44 he lied
@@NittoNba44 pretty sure OP is referring to the fluid
I wondered why the outside axle bearing in my LSC went bad. Now I get to chose between too much and too little. BTW pain in the ass to change. Traction lock.
Hello can i ask is there really that much fluid on every diff?
*Who knew a mini-series about freaking diff covers could be so engrossing? Thanks Banks!*
Me too.
I was thinking the same thing.
Lol and I’m not laughing at you
hell i can't wait for the last episode myself.. something tells me.. he's gonna design a cover and price it to recover some of the cost of this research.. which is a lot.
I really want to know what the Best Aftermarket cover is the best for my 2004 F250. The suspense is killing me already...
Maximum respect due Gale Banks. Not just to make everything he touches faster, but to understand how and then make it available to the public, he deserves a medal ( to go with the coin ).
Respects to the poor guy in the truck while up in the air.
These covers are a ripoff. Go ahead, make him richer. DA
I feel I went from 0 to 10 on learning and understanding what's going on under those diff covers and I've never considered myself mechanically inclined. Great teaching!
Wow Gale , I’m a retired CATERPILLAR mechanic. I just stumbled across your channel. This video should be required for all mechanics. I concentrated mostly on engines but did rebuild differentials and all other components. This was extremely interesting. Looks like It’s gonna be a binge night. I’m especially interested in the 2020 duramax series. I’m probably gonna buy one later this year. I’m a little Leary of the first years of major design changes though.
What a legend. Still waking up every day wanting to improve and learn. He's such an inspiration. I would give anything to be that devoted to a cause. At that point, it isn't work anymore.
You must have taken lots of grammar classes.
Sometimes it's our perception of our very own definition of work that we choose not to agree with.
I'm with ya.
ACTUALLY HE WAKES UP SCHEMING ON NEW WAYS TO SEPARATE FUCKING FOOLS FROM THEIR MONEY -- REMEMBER ,BUSINESS MAN EQUALS THIEF !!!
A hobby gives much of the same nourishment.
Jane Book you are a moron.
Mr. Banks, Thank you for investing in an open honest evaluation. Maybe this testing will lead to a Bank's diff cover that truly performs better than stock.
Stock performs perfectly. Thats the whole point of this video.
Just looking at Gale Banks and hearing him talk with such confidence makes one stop and say, "This guy really knows what he's talking about." Thank you for sharing Mr. Banks.
Who else needs to change rear differential fluid??
I do it every 100,000 miles.
Not me I just bought me a new RAM! Lol
I do it once a year in the front and rear axles of my truck. Might seem too frequent, but it gives me a chance to make sure the gears and bearings are okay, and to catch a problem early before it turns my axles into grenades. Also the T-case and transmission get new oil/filter.
I need a rear diff first, hahaha
I do it every 30k. Front and rear.
Who knew synthetic oil turns to milk coffee when spinning😂
Its actually yoohoo in there lol.
Anyone else get thirsty just now? Lol
Like laughing? #ScottyKilmerLaughing
And a latte when you blow a head gasket...
You supposed to add water.
@@jacobsebastien3910 but not too much. It'll tears weak. Lol
I know this has been a large investment for your company for a product you don’t even sell. Just know you are really educating the industry. Please keep these kind of videos coming. It just strengthens your brand for honest quality products.
He sells Banks Covers now 2020/21
You can tell this man is passionate. Ty you for the information. I learned a lot
Mr. Banks, I appreciate this video and your “test and prove” attitude. I feel I went from 0 to 10 on learning and understanding what's going on under those diff covers and I've never considered myself mechanically inclined. Great teaching!
The actual R&D that Banks does and the know-how is just simply amazing.
A man after my own heart. I work on industrial process and test instrumentation. Consistency and repeatability are the cornerstones of an excellent test (along with consistent test methodology)
Gale Banks ! Thank you for this most informative class and video on where differential fluid goes ! I have been reading about your company for what - at least 40 years or more..
I am so grateful for all your hard work, and for your family sharing you with us over all this time.
I hope that you and yours will always be well..
Never thought I would find the inside of diffs so interesting - Be interested to see a strobe put on the turbulent areas to show the pattern better.
Name one gas/diesel aftermarket performance company that does as much R & D as this guy does.
That place with the 300mpg carburator
No one does! They definitely test everything and verify all results! My only beef with Banks is the Derringer for my truck isn’t released yet and you got yours way before me Joe! 😂👍
John DiMartino, isn't your truck fast enough??? Those 10 speeds haul ass!
Nobody even comes close. BUT All the big three light diesel U.S. truck manufacturers buy technology or parts from Banks, so is it really "aftermarket" ?
@@dickdanger7867 and the military
Wait... You mean the engineers with a lifetime of experience is smarter than an armchair mechanic!?
Ya!
No way not possible 😊
No, I know more than him
AZREDFERN mechanics can’t be smart?
@@Slowboi335xi he's talking about people who sit behind youtube talking as if they know everything about cars
Most rear axle vehicles I have to repair on the axle side including my own it's not all that simple but please let me explain, first it depends on the terrain the vehicle is used flat level roads it's all okay to have the correct level and all so if you do high enough speeds, but I do field repairs on farms that sometimes take me to spots that well is so hard to get that 15mph is speeding and have to be in low range 1st gear for several miles with sometimes sloped badly to one side and had previously a bearing failure on the higher side of the axle. Now I've learned that if you do any off roading with slopes that is to the side it's best to over fill axle but in this it creates another problem and that is with high speeds foaming is a problem so you have to sacrifice. But don't just run and overfill your axle just yet just because you're doing a 10 yard slope to the side at 10mph as there'll still be enough lubricant to protect your axle side shaft bearings. Hope you will find this helpful. Oh I've been a field mechanic for 26 years and just something I've picked up over the years.
This man has forgotten more than I'll ever know.
+1. I'd say he's forgotten to forget more than I'll ever know.
That statement inspires very little confidence in everyone's abilities
@@PsychicCellphone
That was meant to show respect for Gale more being self deprecating
@@danmanthe9335 the phrase is overused, unoriginal and doesn't convey anything of value. It's more genuine to just offer someone thanks without sniffing their balls too. Just saying.
Yes it does. He is saying that he respects the tremendous knowledge Mr. Banks has gathered over his lifetime. If you continue to struggle to understand or make inferences, I'll try my best to help you out.
Mr. Banks has my most sincere admiration. He has been building amazing machines since I was getting started in the mechanic business in the mid 1970’s. Well done sir. I hope to meet you someday. I would like to know his oil and lube preferences and I’m sure a lot of people would also like to know! For both gasoline/turbo, and diesels! Keep up the stellar work! God bless!
I like when Mr Banks gets curious, cool stuff happens when he does.
Eric Brunhammer is your profile picture a Compaq computer from like 2005 lol
I have that computer. It's an Compaq
512MB of RAM. 20GB hard drive
I think I want a Cafe Latte after watching this
😄
The most under rated comment right here lol
Or have some taco bell lol
😆😆😆😆 te pasas!
It's a conspiracy.
Mr. Banks, I appreciate this video and your “test and prove” attitude. While I agree with you that the flat backed covers are a terrible design, one thing I suspect that might differ from what you are suggesting at 6:40 , is that maintaining an even gap between the ring gear and cover to in fact not be all that beneficial. From working with hydraulic systems, I suspect a reduction in clearance as the oil travels up the back of the cover and over the ring gear is more beneficial as it helps the oil column to maintain the velocity needed for the oil to achieve escape velocity and get thrown into the pinion gallery.
Everyone knows that diff covers with skulls work better.
Surprisingly for the Harley Davidson edition it doesn't come stock with that lmao
Add a pair of truck nuts on the back and she’ll be sick
Crying right now lollll
😂😂😂😂
uh yeah i had to go imediately check. and yes my money is going towards a skull cover... no odd shapes, "closely" matches factory shape, ring gear channel....check.... bullet proof...check.....cover cost...cough. knowing its money well spent priceless!
Thanks Gale for such a detailed experiment, I am hooked on this series and can't wait to see some data!
I cannot believe how much this caught my interest. I watched every second in awe. Can't wait for more research and details.
Would have been awesome to see the flow when it was in reverse gear :)
@Ray Man LOL
yeah really, obviously wouldn't wash the gears as well, this was a neat video
Dont usually go very fast in reverse. You??
@@hotrodray6802 Not *yet* I don't!
"You want to get the heat, the hell out" --- #LifeGoals
Spoken like a true prodigy. 👍🏻
@@bankspower What banks is forgetting here is that the gear oil level must be sufficiently high enough to lubricate the axle bearings pressed into the ends of the axle tubes as well as the carrier bearings pressed onto the diff carrier.
@@texasrox2010 Wow... it's like you were stoned during the entire video... so I'll summarize: when sitting still, you don't need any axle bearing lube, but when going just 15MPH, there's so much _turbulence_ and splashing, that the axle and carrier bearings GET PLENTY OF FRESH LUBE. Graphic videos of dramatic transparent diff covers aside, have YOU ever had a rear axle bearing seize with less than 150k miles on it?... No?... then it must be getting enough lube, Q.E.D.
TLDR: Mechanical Engineers know WAY more than you about proper lube levels.
@@texasrox2010 you dont know how a semi-floating axle functions. A full floating axle, like in a 3/4 or 1 ton uses the diff lube for the wheel bearing lube. The axle of a half ton does not, it is sealed at the edges of the pumpkin, and the wheel bearings are sealed roller bearings that do NOT receive lube from the pumpkin. Nice try though.
Imma watch the movie "Heat" now
Thank you so much for all these great educational videos .... hugely appreciated
I think whatever comes out of this we may learn where we can not lose a few horsepower here in there and what we can put on a rear axle to make sure that lives a long happy life especially for the lubricant. The coolest thing of all is he's not doing this to intentionally disparage anybody that makes diff covers he's just after the fax in the information where they lead us is where they lead us. Facts don't lie. Thank God no politics here in the video or the conversation
“I want the knowledge and there’s nowhere to find the knowledge” I feel that a lot
Gale you look like you are having a lot of fun! I bet you are already working on making a clear squared off cover, can't wait to see the result.
I'd love to see that too! Why do I see that being the next video?!
I was about comment this, we need plastic models of those aftermarket covers
This is the first video iv watched an this channel off the bat is amazing great job ur a great mechanic especially to a young kid like myself that is wanting to learn all about how stuff like this works i really appreciate it youve done an amazing job thank you 👍👍👍👍 this channel could really change my life
Thank you for the kind words! Based on your comment, you'll really enjoy the other episodes in this series as well as Killing A Duramax and Building A Monster Truck Engine.
Glad to know if I tilt my diff with shims, front bearing will be getting lubed no matter what angle. Thank You Sir.
I always learn something whenever Gale speaks.
Kraj You are a fucktard. Be silent, child.
Stock seems to be best and aftermarket is bling! Thank You Mr.Banks
Interesting. Have done differential work and never thought about the way the gear oil is distributed.
Joelynn Carter as you could see, they became submerged dynamically via the ring gear carrying the oil there. While static, it drains out of the axle tubes.
"If you delete the drain plug, it is lifetime sealed and should last forever" *Former Ford PTU engineer*
Ray Man ya look like u bought it
Notice how he said *former* ford ptu engineer.
99 % never get changed for the life of the vehicle anyway.
Sounds like something a chevy owner would say
@@hilljackzack7284 🤣🤣👍
I like the idea of aluminum for a differential cover to deplete the heat and keep the viscosity of the oil at a decent temperature! Can imagine how aluminum would work well when towing with a truck! Thank's for sharing!
Some Jeeps have the "heavy duty" version of their transfer case housings made of aluminum, which...I didn't fully understand the reasoning behind, until I watched this video.
It's not for strength in that case, but rather because it wicks away the heat better than steel.
Make a plastic cover molded in the shape of the MagHytech one and let see the fluid results
with thin plastic sheet, the diff cover itself could be used as a vacuum mold.
I would like to see what happens to fluid when it hits what he calls a step and if it really matters. What I'd also like to see just taking a rear end and attaching an electric motor to it. That way you can measure current draw at a given rpm at the rear wheels and you can run it for longer periods. It would be interesting to see what happens to the fluid after running at 60 mph for an hour or longer. Does the fluid have more bubbles or the same?
@@brainfreeze44131 THAT WOULD F****** WORK! We had a bench in the USMC (it was a USAF hand-me-down) called the MA-3 bench that was used to test generators.
Again, good idea.
Having the truck on a dyno creates the similar load/friction (build heat like on the road).
I suppose you could disconnect the yoke from the driveshaft and then somehow tie in an electric motor to turn the yoke instead.
I pretty much assumed that would have been in this video.
Mr. Banks, great vid. Just had my 8.8 rebuilt recently, of course been looking up info. Your vid has been the best by far. I never subscribe to channels, yours will be the first.
I am in the medical field and have many peer reviewed journal articles to my credit. This guy does studies correctly. Too bad many on RUclips believe anything they see, I think this will show that looks don't equal performance.
Well, I'm a local dive barfly and have many peer-reviewed verbal rants to my credit as I often hold court at the bar and wax poetic about life in both philosophical and theoretical contexts and I thoroughly agree with you; this guy does studies correctly!
I'm not going to to believe what I see in your post unless you show me peer reviews of it. See how that works?
Gale Banks is a living legend. I've been impressed with his work since the 70s.
Such an awesome video! I've been a huge fan of Gale since i was kid back when he was doing stuff with the 7.3 and 6.5 long before anyone else got in the diesel game That and the twin turbo chevy small blocks, Gale is a big part of why i got into automotive. I hope one day to be able to make it out that way and meet him. To be able to shake the hand of a true icon in our automotive world. Keep up the great work guys, your passion is what keeps this industry alive!
It's once in a lifetime to be able to see action in the differential. Thank you Sir!
First time seeing the dynamic lubrication, great study, thank you Banks!
Banks is the man for this exact reason! his scientific mind produces the absolute best products.
👏🏻👏🏻
@@bankspower What banks is forgetting here is that the gear oil level must be sufficiently high enough to lubricate the axle bearings pressed into the ends of the axle tubes as well as the carrier bearings pressed onto the diff carrier.
Hi sir, I was wondering when we going to get an update on the diff cover for the f150 09 to 2014. Please let us know. Thanks.
Without the smooth transition of the cover, over long periods with a cover without that flow direction, one wonders if the lubricant would endure extra shearing forces? Not to mention foaming and the extra oxidation.This all perfectly illustrates what engineers and Spicer and Meritor told me about the way their covers were designed. Good work and I am dying to see the results.
Jim Allen I’m also interested in this test . I believe you meant aeration as opposed to oxidation in regards to the foaming of the oil. One is Air mixed with oil, as is the case here, vs a chemical change at the molecular level (oxidation). I believe anyway.
Alexander Coburg He is correct. Air contains oxygen. Oxidisation is caused by oxygen. Aeration of oil, especially with high temperature, accelerates oxidisation immensely.
Yes, foaming is the less correct term, but maybe more understandable to more people. Foaming and aeration, of course, are a major source of oxidation and early lubricant failure.
I have been repairing cars for over 40days. This is the first time I ever seen what goes on behind a diff . Great vid
Thanks Ali! 🏁
Thanks for the time to make this vid, Gale is an absolute Legend!
I just love how he always wants to know, and if he cant find the data he just throws everything at it and he finds the data!!
Great series 👍🏼
But 20 dislikes ?! Must be aftermarket diff cover owners 🤭
LOL.
Nah probly some tree huggers. The diff companies are probably thanking him.
their dispersal pattern is inadequate!!! haw haw!
Daniel Minic Yea if i spent $300 on a worthless item id just bathe in my ignorance too
Thank you once again, I follow things like this. Reducing the heat in the rear end is a really good thing. As anyone that works on vehicles knows heat is a killer of things if not controlled. Watching your videos has educated me in a different way. I understand the thoughts and theory of what you are explaining. I live in Alabama, summer time here is brutal on a rear differential. DoesUsing your differential cover have any drawbacks for the winter?
Oh, and the applications for racing!!! My mind is going in several different directions at once!
I just rebuilt my read end on my Chevy and was alot easier than it thought it would be! Of coarse I had some guidance from my ol Pops! He is 73 and we actually went to Bessemer State College for Auto Mechanics when i was 17 to 19 years old! U treasure those days!!!! Anyway have a blessed weekend!!!!!
I dont know if you remember her but my grandmother worked for you out of Azusa from 95 to just about 2005. Her name was jane kusaka and its cool to think she worked for you and now im watching your videos, love everything you do.
Very interesting test and a great video. We need more content like this on RUclips
Fluid dynamics is a science.....
Some diff cover makers probably just saw "fluid dynamics" in a book and want to make a cool looking diff cover for the Barbie truck crowd.
Ye
This is by far one of the coolest videos I've ever seen.👍 I really like to see how things work in real-world circumstances. Thank you so much and where do I get a plastic dif cover for my 02 Silverado. 😁
Gale Banks is a man of absolute wisdom and knowledge. I really love that he has taken to this new age of free information to the public. He wants his product to help you help him help others. He also is known to admit when he is wrong publicly. So you won't have horrible customer service experience if something goes wrong if you programmed or installed correctly.
Wow!You could not have made a better video! I was gonna buy new covers,now just primer and paint👍,very informative...my eyes are opened.Thank you for taking the time to show us sir,Big thumbs up!👍👍
Thank you for watching! We learned a lot during our testing of the various covers.... enough to create some incredible innovations. You'll hear about them soon!
Looks like a good aftermarket would be stock shape inside using aluminum with cooling fins outside. Best of both?
yeah, maybe even with vertical oil channels inside to keep the flow direction uniformand to increase the heat transfer surface area
Anax100 vertical fins would still change the direction of flow that the engineers intended. The best would be an aluminum housing the same shape inside and outside just with external cooling fins to add a bit of surface area.
If cooling really was the aim, there would be finned housings and tubes too.
@@Anax100 that would only work if the cooling increase was greater than increase in heat production caused by the shear forces introduced by changing its direction as well as the increase in shear caused by the extra surface area of the internal fins. Basically, you need someone who is _really_ on their game when it comes to multiphysics simulations which are then backed up by real world testing of some sort. Or possibly just a shit load build, test, tweak, iterations b/c those simulations could take days to run to be of any use. And that doesn't even take everything else going on inside a diff into to account.
Not impossible by any stretch & ideas yours are how things improve. Just need to find the right idea. Even what many would consider a shitty idea could actually be a breakthrough. However, being such a mature design I'd wager that simply changing the diff cover isn't going to produce any Earth shattering results. But you never know. That's the beauty of R&D!!
Not trying to impose any stupid thoughts but aluminum is brittle and can bust if impacted. I work for a company that is hard on our trucks in that most of our work is off road. I have bent up a couple of different covers. Had they been aluminum they would have busted. As it was we kept going to get back to the shop with no down time. Also with road debris same scenario can happen as a brick fell off a truck in front of one truck and banged up the rear end bad. Actually cracked the pumpkin. Diff pan helped to keep things intact enough to get truck to a shop. Aluminum would have cause a catastrophic fail and possibly a wreck. This is just my thoughts on it. Shade tree mechanic here so my voice is weak on this.
Your voice is not weak on this. It is a very valid point. It is also a point that is proven time and again. Whether it is an aluminium wheel, aluminium sump, or an ali diff cover there is a big trade off. Yes, ali wheels are lighter but on a 4x4, you cannot beat a bent ali wheel straight if you damage it. Many people with ali sump pans have been disabled when a rock strike on a steel pan would have dented it without breaking. As for diff covers, the same applies. I do not think there is any viable reason for an ali diff cover. If cooling is a problem, buy an oil cooler and fan. Mounted correctly, you will not damage it.
Ultimately, these ali diff covers are put on trucks because they look cool. The supposed benefits of cooling is marketing BS. In any case, the pressed sheet steel on the stock cover won't retain all that much heat anyway. Yes, ali is a better conductor of heat but not THAT much better. Especially in that application.
I’d love to see a test of different gear oils....conventional vs. synthetic, with & without friction modifiers(limited slip additives) since you have the perfect teaching tool in your clear differential cover.
I'd like to watch the posi-traction system doin' it's thing, in real-time.
No tests necessary -- ANY synthetic gear oil will out-perform ANY conventional gear oil of the same viscosity. Period.
Among the synthetics, only Royal Purple has the Friction Modifiers built right in to the formula.
The famous 95 MERC runs an X-Pert Performance cast aluminum diff cover, LubeLocker re-useable gasket, and 80 ounces of Royal Purple 75-W-90.
@@revolutionday1 All you'd see is gear oil splashing around, which is only slightly more exciting than watching paint dry.
At silklizrd where did you get your info?
This is a very remarkable demonstration. Great job. Thank you for sharing. ✌️
Couldn't have asked to find a better and more knowledgeable channel during quarantine. Time to binge and learn stuff
I love your approach. I love the straight talk. Keep it up, Gale!
thats pretty cool, i like seeing how the inside works in actual motion than an animated 3D video sketch
Good stuff Gale. I sure miss delivering material to you guys. Keep up the good work.
Really enjoying this dif cover series
Just installed my new banks diff cover. Looks great, works awesome. Thanks Gale!
As a visual learner, this video is a literal god send. I’ll never forget this awesome information!
Wow this guy is a professional
New banks dif cover coming soon? Seems like you could do much better with the data you’re gathering.
They wouldn't be spending this much time and money if it wasn't for product development!!
I was about to say the same thing. Haha
That was my thaught
So far the verdict seems to be stock is the only way to go
Until banks releases its new diff covers.. hahaha
This is a Tremendous video...Thank you so much for making this! You really Know what you are doing!!!
I could watch Gale talk all day. I'm not an engineer or mechanic, rather just a guy who likes to turn the occasional wrench. Love Banks' style. Always impressive.
Was rebuilding my Ford 7700 Sterling 10.25 rear end and was going to put an aftermarket aluminum cover on until I saw this video. You saved me a lot of money and a lot of aggravation. I figured the best thing to do was take the stock cover and have it sandblasted and powder coated and bolted back on with new bolts. Still got a nice looking cover but yet allows oil to flow the way the Ford engineers designed it to do.
Great Job! Its Awesome that you guys actually moulded a factory reared cover . Thanks Banks !
Bloody brilliant and thank you so much for putting this here, the diff, always taken for granted. :)
Great video and so much great information too 👍👍. Now we just need Banks to make an even better diff cover !
Just awesome!! Can you make a clear oil pain next ?
Possibly! Its on our list, however, we are current focused on other hard parts like exhausts and intakes at the moment. If we do, part development will not start till next year.
The world is a better place with men like Gale Banks in it. The highest respect to you sir. Thank you.
I dont know why I'm watching this at 8 am. I don't even have a car... but it's interesting.
Dan knowledge is power
Always wanted to know how the RD works, great video
I really like this guy...
So earnest and sincere.
I admire people who love to share their knowledge! Thank you Mr Banks.
Thanks Gale and crew at banks power, finally some clarity, insights and updates on this matter for 2021… for me what got me was keyword when doing testing and or data gathering is what Gale have said as well which is Repeatability and consistency And also eliminating factors that might affect the testing.
This was oddly relaxing to watch.
Awesome video... can't wait for the facts to come out. I love how you're going about it. awesome diff cover by the way. I can only imagine what the results are going to be like based off of what we saw in this video. I cant wait for the next video Thank you for taking the time money ect to do this testing. I'm sure it's been done by Engineers for automobile companies several times but they're not sharing the results and you are so again thank you.
This is most watched in RUclips about banks power
Gale, I worked with Randy Ritchie many years ago at Foulger Ford. We had many discussions about your work re diesel performance. Great video on diff fluid flow. I always thought of diff housing as nothing more than a leak proof box.
Differential cover heat dissipation and splash orientation is a must to protect the life of a hard working rear end.
I used to work at Nissan, and when people used the first generation Titan as a work truck and differentials started to drop like flies, all nissan did was to update the diff cover, what a difference!!!
Fascinating information. Thank you, Mr Banks!
Wow! I had no idea that cover's shape was even important! 🤯
Someone finally made this
Gale F'n Banks!
How about building a clear head and block so we can see the pistons move up and down and see the combustion process and the oil how it circulates around the crank
@WarpedPerception did this video a while back. Check it out here: ruclips.net/video/jdW1t8r8qYc/видео.html
Cavitation (air) in the lube also acts like an insulator, as it hinders thermal transfer. That's why a 7-11 Slurpee doesn't quench your thirst ounce for ounce as much as an equivalent gulp of beverage would. Therefore, a correctly shaped aluminum cover with cooling fins has my vote.
the only time you should worry about having a after market diff cover is if your going off road and need a 1/4 " thick diff cover to stop stumps.
nirvana896 that's why I love my riddler diff covers in my JK Rubicon!
it's you're, not your ... (third grade grammar)
Well grammar Nazi dickhead, you missed where he said "a after market" where it should have been "an after market". That's also basic grammar but you missed it in your comment. I'll bet you feel real cool and super smart correcting people with rude comments.
@@cfltitan difference being that a and an are one letter apart and could easily be a typo. your and you're are different by means of both an apostrophe and an e on the end.
Right on! This is awesome.
Could you do something like a shroud around the ring gear with one of those high capacity covers
YES, AN "EXTRA OIL CAPACITY DIFF COVER, TO SEE IF THE FLOW PATTERN CHANGES ANY/MUCH.
Good clear presentation. I worked with belts, bushings, bearings and they can be very misunderstood. A good circulation to cool, and disperse additives (and heat) and in a sealed system synthetic would be the way to go.
Thank you Mr. Banks! Great video. I learned so much! Please keep up your great work! Retired in NC. 😊