I was in the automotive business for over 38 years , I have done plenty of differentials in my days , what you looking at in this KZread is a textbook differential assembly , this is the way I did it the mechanic shop way the easy way . 1st ; Ring Gear Carrier bearing preload , the first thing I will do is Ring Gear carrier preload before I even install the pinion gear in the case , I will drop the gear carrier in the case and lightly tighten the bearing caps holding the bearing in place ,after installing the Ring Gear and carrier I will use a rubber mallet and smack the front of the ring gear couple times then the back of the Ring Gear couple times making sure that the ring gear adjustment shims have settled in their place , then tighten the bearing cap bolts to specification and check the preload , at that point I know exactly what size shims I have to use , all what will be left is swapping shims until the right contact point and backlash between the Ring Gear and pinion is achieved . 2nd ; Salvage the old Crush sleeve or shims whatever you're using , install the pinion gear without the oil seal using the old crush sleeve ,(unfortunately oil seals on the market are not exactly all the same , and some aftermarket oil seals will apply additional drag on the pinion gear preload adjustment ), Install the flange yoke ; tighten the pinion gear knot just enough to hold it in place , keep in mind that the new crush sleeve will only give you one chance to get it right , and that's why the use of the old crush sleeve can be extremely helpful ,install the ring gear carrier and set the contact point between the ring gear and the pinion gear . (some Crush sleeves that I had to deal with made out of thin material that would easily Crush , others required extreme pressure before it begins to crush , therefore salvaging the old crush sleeve is an option that might come handy ) . If the crush sleeve was manufactured out of thick difficult to crush material ? I used to do some measurements and get a rough idea of how much Crush did the job require , then using the hydraulic press reduce the size of the crush sleeve leaving behind a small distance to be crushed after installation in the differential . therefore adjusting the pinion too ring gear backlash and contact points will be easily achieved without fighting pinion gear preload with the oil seal drag on top of it , if the differential you're working on uses shims instead of a crush sleeve then you are in luck , it is possible to adjust pinion gear preload to specifications without worrying about the final installation in which the oil seal will impose additional drag on the pinion gear preload adjustment , this way after you are done with all of the adjustments you could easily install the oil seal without changing the pinion gear preload . 3rd ; after the final adjustments making sure it is where you want it to be , remove the drive shaft flange yoke off the pinion gear and install the new washers or the crush sleeve , install the new crush sleeve and the bearing then install the seal and the flange yoke , all what you have to do now is get the proper pinion gear preload keeping in mind that the seal is fighting you back . there was times where the crush sleeve was made from thick material and I had no option except to used the hydraulic press and crushed it to a light preload , after finishing all the adjustments that was needed , I installed the oil seal and all what's left now is just a small amount of Crush sleeves preload , do not use air impact gun to adjust the Crush sleeves preload , it will crush too fast and you will lose it . Warning and if you words of caution and good practice . A used differential will require a larger amount of backlash , for example your dismantling a differential to replace a pinion gear shaft bearings , make sure to measure the amount of backlash on the ring gear and pinion gear before dismantling it , upon reinstallation it is ideal to get the backlash to what it was prior to dismantling it , do not adjust an old used ring gear pinion backlash to the book specs that deals with the new ring gear and pinion , it will be too tight .

This is THE most informative video on this subject I have ever seen. Thank You for your great teaching skills!

i have set several ring and pinions in my days. this guy cuts right to the point. Anyone can set up a rear end after watching this great instructional video. i wish i would have had this type of teaching 42 years ago. when i would just slap stuff in and go do burn outs till it exploded. 2 thumbs up

Without doubt the best teacher I have seen on You Tube. You have inspired me to rebuild the noisy diff on my Nissan instead of taking a chance with a used replacement. Having seen your video I now finally understand the workshop manual. Many thanks

I can't thank you enough for this informative video, great instruction, delivery and visual. I am much more confident taking on my project now thanks to you.

Best tutorial I've ever seen. Generic as it applies to all diffs. Very good explanation of different touch patterns and underlying reasons for deviations.

This is one of the best explanation for setting up a rear end. If you still don't understand it after watching the video than you probably shouldn't be doing it. Food for thought

@WeberAuto

5 жыл бұрын

Thank you!

Good job explaining the basics of setting up ring and pinion gear sets. Pay no attention to the goofs below that expect you to put years of experience into a 6 minute KZread video. I appreciate you sharing your time and knowledge on the subject.

@WeberAuto

9 жыл бұрын

Thank you for your nice comment. It is true, the average attention span for youtube videos is 6 minutes. In the real world, things take longer than that, especially precision technical work.

Thank you so much for this wonderful video. You are a real gentleman with a profound love for your job and willingness to share your knowledge with others. I strongly RECOMMEND and grade this as number 1 video in its category. May God bless you sir for your kindness and generosity.

Tanks of shearing your professional Ade voice on this Differential ring and Pinion Gear setup.

@WeberAuto

7 жыл бұрын

Thank you!

The only guy that really explained what preload is for and what it will affect

@WeberAuto

5 жыл бұрын

Thank you!

Thank you so much this explained the mystery PERFECTLY. Really appreciate you taking the time.

@adambrecker2600

7 жыл бұрын

Jim Devlin, Jr. Your welcome

@JohnnyProfit13

10 ай бұрын

😊😊😊😊😊😊😊😊😊😊😊😊😊😊

This is very helpful thank you for posting and including a chart. Best video I have seen out there.

This is by far the best video on the subject. Perfect explanation, very clear audio, well spoken, and great camera quality. By far, I'm blown away at how much I learned. Thank you thank you

Not just the first but the only professional differential video I have seen on youtube. Its expensive to do it right because it takes time.

@WeberAuto

6 жыл бұрын

Thank you. You are correct, it is very time consuming to do correctly. Have a good day.

Thank you for your fantastic demonstration. I am not a mechanic but I have learned a lot from the video and your clear and paused way of explaining.

Wow, very thoroughly and professionally explained, You are a true professional, thank you!

@WeberAuto

5 жыл бұрын

Thank you!

There will always be those viewers out there that bash a posted video as this ( see a few posts below ) . But I totally agree with WeberAuto that it would have taken them a few hours to show all the different senerios with gear set up . Also I would agree from past experience ( incorrect pinion set up from a local licensed Ford Dealership ) which caused pinion failure on my truck's rear differential . That there are trained licensed technicians/auto mechanics that either take short cuts or just don't fully understand how to properly do a gear install .

we need more good American like you self sir. I really appreciate your professionalism and how you explain the information, thank you.

@WeberAuto

8 жыл бұрын

+A Omer Thank you!

Young man, hell of a job on your presentation, wish more of the boys these days follow your style and perfection. Thanks for sharing your knowledge and expertise. God bless.

@djsteve1987 Hi, When you ran the contact pattern did you provide some load on the ring gear as you rotated the pinion? I usually use a pry bar on the outside smooth part of the ring gear to make it difficult to rotate and then turn the pinion forward 5 turns and backwards f turns. (Assuming the backlash and pinion depth are close to spec) If you still do not have a pattern on both the coast and the drive sides, you probably have a bad gear set.

thanks John the reason I asked is since i rebuilt mine and everything is new except ring and pinion gears axles use to have a lot of play now they don't have any you can feel so i guess iam doing good then!

I will do that! and once again thanks for answering my questions you have helped me so much in educating me on differentials!

I very much appreciate you taking the time to do this extensive detailed video.

Thanks professor for sharing such a high quality video. I learned from this what I needed to set up my new gears. Just wish the tools didn't cost so much for the set up! I just wish you had a video about using a pinion depth gauge to measure pinion depth and not just a video about the backlash.

Hi, the shims are selected by setting the side bearing preload first (with the shims) and then by adjusting the backlash (with the same shims). If you have no idea of where to begin, use the original shim thickness and go from there. I tried to explain all of that in the video. I hope that helps.

thanks a lot John! I understand it perfectly now! and yes your right about lost art of doing it correctly I had some shops mess things up on differentials a lot in the past that's why i don't trust too many on that and I have promised myself I would learn to do it the correct way for the last 15 years thanks so very much for your help and knowledge it's really helped me out!

OMG! I seriously LOVE this! I keep having nightmares about what to do with my Differential Ring and Pinion Gear Setup, and now I can rest easy!!!! Thank you Professor Kelly!!!!!!!!!!! he he he :)

GREAT explanation, as usual! Thank you Professor Kelly! I thoroughly enjoyed your Voltec videos, as well, and recommend them to my electrification colleagues at GM.

@WeberAuto

5 жыл бұрын

Thank you very much!

Thank you, for a very Informative and well done Exercise on how the relationship between the ring and Pinion, shims, bearings and all intermix. Your Explanations for the relationships are very concise and easy to understand. Bully for WSU and You!

@WeberAuto

9 жыл бұрын

Jezeppi1 Thank you very much!

Thank you very much for this video.. After taking a course on this, watching the video help me understand it even better..

wonderful tutorial.thanks long live the internet!!

wonderful Video set pre-load first after that adjust Backlash finally use Gear marking compound for last confirmation Sir you are really a Professor warm greetings from Saudi Arabia

@WeberAuto

7 жыл бұрын

Thank you!

@tompastore9915

6 жыл бұрын

تويوتا عربية was

Thank you so much for taking the time to make this video! I'm a bit nervous about doing my own diff rebuild, but I feel like this gave me the knowledge needed to ensure it's done right. I also predict taking mine apart many times because no way everything will just work first time like this for me :)

Thank you so much for a great educational video and lesson. You are a great teacher, I'm not sure if you are a teacher, but you definitely can teach . I'm a truck technician and always want to learn more. Thank you and God bless

Want to thank you for a short and clear video. Helped me to explain this job to a my daughter before we got into things on a Ford 9in. Thanks much!!

Best video i have ever watch on how to set the ring and pinion. thank you so much for this amount of information..

@WeberAuto

8 жыл бұрын

+marcos vargas Thank you very much!

finally a person that wants to offer help to other people! great work and great video mate! :D

This gentleman is a splendid teacher.

@WeberAuto

6 жыл бұрын

Thank you

That was an amazing video. It really helped me to understand how to properly make adjustments when building a rear.

By far the best video I have ever seen. Thank you

@WeberAuto

6 жыл бұрын

Thank you!

@chriswerner8968

6 жыл бұрын

No

this is all i needed to see to know that doing this is waaaaay above my pay grade!

@WeberAuto

3 жыл бұрын

It can be challenging. Thanks for watching

@zacdenning79

Жыл бұрын

Not me right in the middle of my regear trying to figure this out. Fml

I learned a good amount of new information about axle gears in this video. Thanks for this!

Hi, the C-clips do hold the axle shafts from coming out on those and many other axles. Other axles use a pressed on bearing and retainer at the axle shaft bearing to hold the axle in place. Thanks for the nice comments.

Great video. Thanks for making it!

@WeberAuto

7 жыл бұрын

Thank you!

Good shit! Thank u for taking the time

@stephanielimon2470

9 жыл бұрын

He used a plactic hammer .. but overall a good video

That was a GREAT presentation! Wish I did that work as a living. I find it so fascinating!

@WeberAuto

8 жыл бұрын

+alwcurlz Thank you very much!

Very informative video! I replaced the planet gears in my car a year ago since the previous owner had welded them stuck. Since I had no proper tools, knowledge and skill to adjust it properly afterwards I sent it to the dealer. A year later, now, it rattles, oil is black and a lot of metal particles. Turns out even the dealer couldn't set it up properly. Expensive lesson for them.

Back in 2007 I bought an 07 mustang gt and bought ford racing 4.10 ring and pinion gears. Watched this video and read up on differentials for three months lol. In the end I had no noise and faster mustang off the line... now I own a 09 mercedes s550. Curious to find out about mercedes differentials.

I just wanted to say ive learned just about everything about setting up and rebuilding differentials from your videos I still need to study gear pattern interpretation a bit closer thanks for sharing your knowledge John! you are by far the best instructor I've seen! axles and drive train components is one of my biggest interests and it's because of the problems I've had with them in the past having shops not repair things correctly especially on differentials! I am not giving up till I fully learn how to set them up correctly and you have taught me that in the mental sense now I am going to have to apply it hands on! thanks again for your knowledge!

@WeberAuto

8 жыл бұрын

+Greg Robinson Thank you very much!

Thank you for the video. Very informative, I feel confident in tackling the job at hand now.

@WeberAuto

8 жыл бұрын

+Abelardo Ybanez Thank you!

great video!really clears up some questions and simplifies ring and pinion replacement

MrRealP x, I can't answer your question if you do not allow comments on your comments in your privacy settings. Rotational torque is the torque needed for a constant rotational motion, not to tighten the nut or bolt. Yes, both need the torque wrench to ROTATE, but one stops rotating when you reach the desired torque, the other never stops rotating since is is measuring the effort required to rotate the nut and everything connected to it. I hope that helps.

@jessepinho6259

7 жыл бұрын

WeberAuto

@johndugger6369

7 жыл бұрын

WeberAuto

@justme197511

6 жыл бұрын

John Dugger hello Mr John, I have a question on a Dana 80, is it possible to change the leaking oil seal between yoke flange & pinion shaft, without removing pinion gear. Or is this improper, one needs to fully remove differential install new crush sleeve and properly install pinion oil seal? I think I've answered my own question there's no shortcuts doing it the proper way.

Reminds me of an old School type fella from the 1950's Doing the job CORRECTLY.

Set up 2 sets by your video and another one or 2 folks videos, kinda just satisfying my own mind, appreciate you very much, Mine was a 5.29 install on Toyota 8inch, going on 4 years daily driving, I believe it was a good install, thanks again for your help

Brilliant explanation of setting up a differential.

You used a plastic hammer to install the shims I have seen the use of a case spreadera device that bolts to the case and a bolt to spread the case apart a tiny bit to install the shims then released to check the preload would that be better then using a plastic hammer to install the shims? Example >Kent-Moore J-45222 Axle Housing Spreader

@WeberAuto

7 жыл бұрын

Hi, good question. A case spreader is only to be used on specific Dana built axles, no other axle uses one that I am aware of. Even when using a case spreader, you must be vert careful to not spread it more than spec (typically less than 0.019") or permanent damage will occur to the axle housing.

@Mike-01234

7 жыл бұрын

WeberAuto Good point I knew that it was .015 but probably best not to use one don't want to damage the case. On another question preload on the carrier bearings could one use the axle to check the pre-load without the pinon installed? Normally most just check the preload overall with the pinon installed seems to me that the gear backlash, gear pattern, pinion depth all affect the ability to measure the carrier bearings preload.

I dont have a plastic hammer so I borrowed one from my 2 yr old. Every time I hit the shim with the hammer it made a "Beep" noise, I think there is something wrong with my diff!

@WeberAuto

5 жыл бұрын

LOL! Thanks for your feedback

Extremely helpful, thanks

Thank you for a cognizant, sensible explanation of a differential gear set up. I work in an environment where sometimes 3 ten thousandths of an inch is unacceptable and after my first gear set up, I was concerned... Now I understand it's not that big a deal. and I only have to work to the .001. I used Dykem for patterning and could see the difference between gear manufactures. I gave up and used white lith. Like another commenter said, thank you so much for your time and expertise.

@WeberAuto

5 жыл бұрын

Thank you very much!

Is this Ron Swanson doing this vid?

@joshmilk917

5 жыл бұрын

Brandon thought it sounds like Sam neill

geez this is nearly impossible to do properly under a rusty truck

@oldwortex5818

5 жыл бұрын

specially doing it on a driveway that most of us working on these. This is a job that the next time I leave for a pro. Gave me such headache, a bottle of advil could not fix.

@ggerely

4 жыл бұрын

@@oldwortex5818 Engine, gearbox, differential rebuild/setup is best suited when removed from any vehicle 99.9%

This video is very helpful to understand the basic setting of the Pinion. Thank you!

A very professional,descriptive tutorial on diffs. A great big thanks!!!!

@WeberAuto

8 жыл бұрын

+Brian Grech Thank you!

Ford and Toyota only smart manufactures of differentials where you can remove the 3rd member and set it up on a bench.

@gwallnut666

9 жыл бұрын

and Suzuki samurai

@alwcurlz

8 жыл бұрын

+kell490 It's only an assembly line improvement where all axles are the same and only the 3rd member is needed for variety rather than multiple axles or, repair shop improvement for differentials that need to be serviced more often. Maybe the quality isn't that good. The rear differentials in two of my four GM 1/2 ton trucks are in need of rebuilding after between 230,000-270,000 miles. Wonder if Toyota and Ford truck rear ends last that long as daily work trucks?

@Mike-01234

8 жыл бұрын

alwcurlz I had a 1991 Toyota pickup that went 500k when I sold it no issues with the diffs in fact the entire drive train was good I changed the fluid every 50k about every 2 years. With synthetic like my F150 has ford says it's lifetime unless it leaks or you get water in it. If you cross deep river 4 wheeling then make sure you don't get water in the vent hose. I'm in AZ so not much water here to cross.

@alwcurlz

8 жыл бұрын

kell490 How many years did you own that truck starting with what mileage?

@Mike-01234

8 жыл бұрын

alwcurlz I got in late 90's don't remember what it was I did rebuild the engine when it had 200k on it. I sold it last year for $3000.

That's a great demo! Another demo that youtube is crying for is a demonstration of how All Wheel Drive works. Thanks for your effort.

I enjoyed your video,you seem like a great mechanic and teacher .

One of the best videos on the subject.

Thanks for sharing this really easy to understand differential gear set up . I know there is many books on this procedure but it's sometimes easier ( like here ) to watch a video demostration than to read through many pages of books that would teach the same thing .

@rau13fede

8 жыл бұрын

Ipi

What a fantastic video, thank you for passing on this information, children of today need to embrace videos like this instead of watching junk television.

Hi, thank you for the nice comment. The bench mount is from OTC tools, part number 7020. Sometimes I see them on Amazon.com too.

Thank you for sharing your knowledge.

Excellent video, makes sense now why my differential acts the way it does. My friend of mine is going to help me rebuild my dana 30 on my cherokee and now have a better understanding when we rebuild my axle. Thanks again!

Awesome video! really helped to demystify some of the setup information I've read.

This was a great video and presentation. My brain started burning up trying to remember everything.

wow! that turned on alot of lights in dark places, terms I"ve herd for years but did not understand. that the cleanest shop i ever saw

Thanks for info. Glad i asked. They were switched.

Great video, very well done and informative. Thanks for sharing your knowledge, much appreciated!

Thanks a lot Mr.Kelly this is a great video to help out fellow automotive students who's Trade schools that might be underfunded or worse pocketing money while actively making life difficult for students.

Extremely helpful thank you guy,this video was one of the most informative I've seen yet.

@WeberAuto

5 жыл бұрын

Thanks

Out of all the videos I just watched, this is the one that has me comfortable with my task.

@WeberAuto

6 жыл бұрын

Glad to hear! Have a good day!

@jimjimm4215

6 жыл бұрын

Thank you again sir , the job went so smooth my coworkers thought I've been setting up rear ends for years

A most interesting and excellent video. Thanks for sharing your knowledge and time.

This is the best KZread video I’ve ever seen.

All of the pertinent information all in one video. Very well done. Thanks!

brilliant video, just started learning about this in my course so this is a huge help!!

@WeberAuto

8 жыл бұрын

+eamon37 Thank you!

Great vid. thanks for the quality explanation of Diff set up

Great documentary, learned more here than anywhere else on this site. thank you.

@WeberAuto

6 жыл бұрын

Thank you!

The pre-load measurements and (front /back) pinion adjustments was great advise. thank you for the explanation

@WeberAuto

9 жыл бұрын

Robert Ndung'u Thanks for watching!

Thank you for sharing your knowledge! Helped me a lot

@WeberAuto

5 жыл бұрын

You are welcome. I am glad it was helpful

thank you for this vid. i now feel a little better about changing my pinion bearings. i am working with a dodge 9.25 but its the same concept. now all i have to do is find the proper specs for my dif.

Thank you so much. Excellent presentation and very clear!

Nice video. Your teaching reminds me of my 1st autotech teacher in 1987, Mr Nichols.

excellent ! great explanation it is really appreciated keep up the good job !!

Still probably best video out there. Thanks !

Hi, the new crush sleeve should be slightly longer than the old one because it is uncrushed until the pinion nut is tightened to the proper rotating torque. It is usually very difficult to tighten the pinion nut to specification because you are also crushing the crush sleeve at the same time. The crush sleeve provides the inward-to-outward force that holds the bearings in place when the pinion nut is tightened to specs.

thanks John for putting up with all of my questions gears and drive train have become my biggest interest! they are very complexed too me anyway! but thanks to you I do understand how to rebuild rear axles now! need to study the gear pattern interpretations more but got pinion preload side bearing preloads and backlash and pinion depth!

@WeberAuto

8 жыл бұрын

+Greg Robinson Thank you!

Sir, Very well explained. I would love to work on a few diffs and Transmission some day. Thankyou.

Thanks for this awesome video. Great explanation.

best educatinal tutorial i have seen and very useful for my studies

Awesome video. Anyone who messes up a rear end after studying this video, should sell their tools. Nice job!!