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Man i would kill to be able to work under a lift at least once in my lifetime, been hugging the ground for years,lol

I recently rebuilt my 8.8 with 4.10 gears using your video as a direct guide. Never did it before, but now my car works a ton better thanks to you. You are awesome.

this is hands down one of the best tech videos I've seen for rear end work. Props for being down to earth and not over technical

"Ideally you should have the pattern a little further down". That's right, so take it apart again and increase the pinion shim thickness. And don't grind the pinion bearing surface. Sorry, but this is the difference between a regular mechanic and a true professional.

Also don't take a die grinder to the pinion surface. I lightly scuff with emery cloth to remove the oxide. You want some press fit on the outer bearing so it doesn't spin on the shaft.

No press? Emery cloth the pinion, put the freezer. Put bearing in oven @ 400 for 1/2 hour. Stand pinion up, and drop bearing on with tongs. It will slide right down making a cool hissing noise. After using this method I found all kind of cool uses for heat and ice.

"Give yourself the better part of a day". Uh, right.

My favorite part was when he: !"GROUND THE PINION"! to fit the new pinion bearing.

Thanks a lot for the video,instructions were great.Everyone makes things so complicated you guys made it understandable.

Always, always, always amazed at how easily stuff comes apart on these instructional videos. I've NEVER been able to remove a pinion seal in good enough shape to reuse it! Unfortunately I live in the real world so my stuff takes a teeny, tiny, tad more elbow grease and grunt work. When rotating the pinion gear after install, you showed 25 on the torque wrench but didn't explain very clearly what that was for. I believe you were showing 25 inch pounds which is pinion bearing preload, or how much effort it takes to turn the pinion after properly collapsing the crush sleeve. Also when showing removal of the C-clips, turn your cap around or remove it so the brim isn't blocking the camera so we can see what was actually happening. I think that's what these instructional videos are for - to see how to do stuff.

I'm pretty surprised you let it go like that.. the contact patch definitely should've been adjusted closer to the center of the teeth.

One of the better videos on youtube.

Yup, easy job when you got the right tools needed for the entire any cars, especially hoist and hydraulic lift the entire car to do the job under without mess and too much dirt conveniently for those experienced and eager to have. I like it. Cool......!!!🆒🚘

you know your stuff...I enjoy watching

This is an amazingly well put together video. Thanks for this.

Back lash is measured at the heel of the ring gear. I wouldn't recommend sanding or filing on pinion so bearings go on easily... Could try warming bearings up in the oven or chilling the pinion with liquid nitrogen or use the press. Great video none the less.

That is why you don't install the crush sleeve and apply rtv to the companion flange assuming the pattern will be good. The pinion shim may be the same for new gears but unlikely if you want a good pattern. I had to add 7 thou deeper to get a good pattern to the toe and that was with new Ford gears.

18:20 When you notice your all time favorite ratchet model and get a warm feeling inside. lol Great video. Should be shown as a learning tool.

Everyone, be prepared to take all day doing this. Good time to replace your wheel bearings also. Carrier bearings never just come off. And getting your spacing right is crucial if you don't want a whine. I always laugh though when people say take your pinion back off and replace the shim. They say the crush sleeve is one time use. If that was true, they wouldn't just give you one sleeve. I've never had a failure from taking the pinion nut/pinion off several times. And a whine usually only last until the gear is worn where it's set. I've did many truck axles where time was an issue so we just slapped stuff back together. Never had a new set of gears break because of a whine, and 1000 miles down the road, the whine isn't noticeable. Besides, when you are use to a major whine in rally cars, a little axle whine is nothing. This job is easy the more you do it. The carrier bearings are the most frustrating part. Doing another axle today.

Great video bill, always helpful. Just one thing, the silicon is always preferred to go around from the carrier side rather than the outside or some might have some leaks especially if not cleaned or tightened properly

Very informative! Thanks for posting.

Bro, this was awesome to watch. Just got a new subscriber

Bro I am legit amazed with your Knowledge on cars, so sick. I hardly know anything and am brand new to the car scene but this video was strait epic. Thanks for such awesome content

After watching this video (vs a bunch of others) I feel more confident that I can do this myself. Literally only need one tool beside the press which I'll have to take to a shop.

The die grinder to the pinion killed me 🤣. I also remove the black oxide coating but by hand using fine emery cloth. All you need to do is take off 1 thousdands of an inch, just the coating. Die grinder way overkill imo

would it be a good idea to paint the gear before removing the existing ring and pinion? you removed the gears and measured all the shims assuming they were correct. judging by the pattern on the new gears, it seems the pinion depth could be a little off?

Great video, thanks for posting, man.

Gostei mesmo foi do seu arsenal de ferramentas!!!

Only thing I saw was maybe he shouldve ran the gasket sealer inside the bolt holes and not on the outside. Makes me sense to me

Great Job👍💪

I did this last night in 3 hours. I replaced the factory 3.08 gear with 4.88's in my 94 lincoln town car. Burn Out machine

Dude makes it look easy jeez

Appreciate the insight.

quite smart explanation

11:26. That thing was on full tighten 😂😂😂😂

Did this with my friend in my one car garage with no experience other than this video, it turned out good, and we even upgraded the carrier axles and driveshaft, would I recommend doing this after experiencing this? No 😂

That my friend was a hell of a job you did. Very professional....

Hey I like your style. I’m building an 8.8 for my 85 mustang 347 6 speed with 4:30 gears and a 31 spline ford carrier. I tightened the pinion to 25 inch lbs and when I spin the carrier and ring gear it feels a little tight. Is that normal? Is it true that the bearings will break in and everything will loosen up? Thanks for the help and I like your style installing gears. You seem very confident compared to others I’ve seen. Some videos will drive you crazy if you go their route.

Good job

Good job I like it 🎖

Great video on the install, nice level of details. One question if someone can answer. The backlash was measured on the ring bolts in thsi video. In the FRPP isntall manual shows the measurement should be taken at the middle part of the ring teeth. Obviously the larger the radius you measure the larger backlash will be measured for the same angular backlash. Therefore it is important to measure on the correct radius.

Great job bro👍

Hey Bill what size bearing race installer are you using for the inner pinion race?? I have an 81MM (3.18) size and will not fit all the way in and seat. the smaller size down is to small.

good job 👌

I found if I set backlash, without the carrier torqued, once I torqued it, it would be tighter.and with a pattern like that, I would have thought you'd need to have the backlash a little decreased, it's on the top edge, it looks to me, like it needs to be more centered.

Hey Bill, thanks for the video. Because of this I actually took on the task and rebuilt my 8.8. I was wondering if you guys have a forum of sorts so we can upload photos? I would love your opinion on the gear pattern I'm getting to see if I'm good to put her back together

I really see no need for that phony rock background track. It's only a distraction.

Good job!!! But I did not get the grinding part????in brand new pinion axel?? Could you tell me 3 torque numbers: ring gear bolts? Bearing cap bolts? and last: driveshaft bolts to pinion flange?? Thank you !

I don't have the press so I'll have to get this done at a shop. I hope someone local can do this job and do it right. I do have a Ford dealer but their prices are "scary".

very nice

Damn, this man is a genious

14:26 - Back-lash. Shoul that not be done at the edge of a tooth? Will give another reading on the nut further inside like here in the video?

I just installed my 410 gears. I purchased the 75w140 because thags what my tag showed to use. With your last comment , do I not need to use the additive i also bought?? Or should i still add it?

Is the backlash the ONLY important measurement for installation? I have seen other videos in the past where powdering the gear is done to look at wear patterns of the pinion against the ring gear. Is that not done anymore?

nice video

For all you saying “looks easy enough”. The hardest part is getting the pinion depth right. He didn’t get it right in this video and just sent it. You either buy an expensive tool to measure or you trial and error several times.

THANKS GOOD VERY MUCH

Hey Bill, if we are just changing the axles do we need to do all the other steps?

I can definitely do this job! Unfortunately, I dont have a press. So, off to the mechanic I go.

Good work, Marc Fields should like your explanation too perhaps.

Great video! Should you run the sealant around the inside or outside (as in the video) of the differential cover bolt holes?

The pattern is one of the most important parts of gear swapping, grinding wtf 🤦🏻‍♂️!

Bill, could you be more careful about keeping your hat out of the way, There were a couple of times you were explaining how to do something, but all I could see was your hat. Great video! This is not something the average guy would want to do in his home garage (unless you have an experienced friend to look over your shoulder).

Great video! Thanks for doing this. I need to get me one of those torque wrench you used when checking preload. What is that tool called? I only seem to find those cheap torque wrenches with a long needle...

Is installation similar on a 7.5 Rear? I was looking at the title first time around and typed what I saw.

So much work. Def a shop doing this for me when I will need it done lol.

11:22 - Wrong way dude :-)

So I noticed on another video you have tighten the pinion down to crush that sleeve. I put mine together watching your video where you don't do that. do I need to take it all back apart and tighten that way down or something?

Awesome video Can my 2015 F150 XLT 5.0 with Stock 3.31 gears and axle accept 3.73 or 4.10 ? I want to install a 6” lift and decent size (lg off road tires) I have read from others that my stock gear set up will have drag with the 6” lift and large off road tires 😢

I bought 4.10 gears, and the installation kit, but it will not fit a 2014 Mustang GT track pack. The inner pinion bearing didn't fit the housing too small. Even though it didn't specify that in their description. It say it fits all 8.8 rear ends, also had bad customer service, I end up buy the right bearing for another $120 at Ford dealership.

good video,I would like to do a 4.10 in my car but don't know if the time and money justify the end results

Eaton specifically says to not use synthetics with a truetrac. Not only that but it's not even Eaton's recommended weight. Should have went back to 80w-90 petroleum-mineral based GL5.

OK.... I'll never complain again about the high cost of a gear change

That mustang has it's rear fenders rolled? How big wheels did it sport? Guessing like a 315? haha.

I have a 95 mustang with an 8.8 rear end, the previous owner had Richmond 4.10 gears installed, a few days after buying it I heard chirping, so I put it on the rack and put it in gear to hear where it was coming from. It sounded like it was the U joint connecting the drive shaft to the differential. Changed it, and it wasn't the problem. What could this possibly be? Any help?

Do you have any suggestions on a video of how to install a C clip eliminator kit?

no new axle seals or bearings? It almost hurts to see that axle slide into a fresh rebuilt diff on old bears and seals.

my carrier shims(1992) were just cast pieces, one on either side. is it okay to reuse them?

what size bearing separator are you using for carrier bearing 3" or 4" or bigger

I don't have a lift. Should I remove the entire rear axle? I think that would be easier

magnífica información !!!!!

My ohv explorer has stock 4.10s. 160HP engine, heavy truck, nothing to write home about, but it has awesome pickup from a stop. Revs quite a bit on the highway though, lucky to see 20- 21 MPG highway. 4.10s aren't made for top speed.

hey bill i bent one of my axle shafts recently and I'm upgrading them to moser axles in my 2014 gt, do you thing i would have to change the axle bearings as well?

Can you help me here ? The spec for pinion preload, is given for case bearing preload or just the pinion without the differential inside?

Hey Bill, great video and mechanical expertise! In your experience doing this, can you comment on the most common problems a first timer may have in this situation (has had), and what the key problems tend to be with this particular work? I thought I would check, as I have done everything else on cars and trucks, but never worked with the rear differentials; honestly, as people often cautioned to stay away from it. So, on the typical 8.8 mustang rears, what are the worst horror stories you may have heard? I would like to know so that I can hopefully add some more attention in such areas of the gear changing process. Thanks.

I'd never try to do it myself. Too much measures to do :)

Is the install essentially the same on the 15+ rear gears?

Very interesting video, produced nicely. I am looking to do just a pinion seal on my F-150 with an 8.8 diff. Can I replace the outer pinion bearing while doing the seal with out replacing the race? If not, is it possible to get the race out without popping the 10 bolt cover off? Thanks for putting this video up! Liked and subbed!

Hi, i have a set of used ford racing 3.73s that i want to install.. i have all the tools except for dial indicator My cousin used them about 1000 miles with no problems at all and pinion is lighty marked by normal use so i was wondering if i go by those marks hitting exactly the same, do i still need dial indicator?

I use a hot plate for those type bearings they go right on Once a little spit boils its time.😂

Man, that differential carrier came out pretty easy. Mine is tight as hell. I'm worried about prying it too hard damaging it.

hey bill just had my rear diff plugged pulled on my 08 gt/cs today and there was big metal chunks stuck to the drain plug and the oil was blacker then black car only has 20,000 kms ive only owned it 2 weeks and the rear end does whine on acceleratation. ive seen shavings before but chunks?

what's the average cost for a shop to install this?

Am I the only one that noticed when he was removing the ring gear from carrier he was actually tightening the bolt

replaced many a ring and pinion in ford and chevy and every time replace the axle seals ..they are cheap and easy to replace and cheap insurance against seepage. also the shim behind the bearing on pinion you need to get from the old gear set is a must and always told that re using it is perfectly fine if using ford motorsport gears in an 8.8 rear end if using another manufactures gears you need to use pinion depth checking tools as the ford motorsport gears and the oem gears are the same and the shim will hold true to spec .. also one thing noticed when removing the front pinion seal and bearing there was a shim there as well ?? I dont ever remember there being a shim there in any of the rear ends I have ever done ? shims only behind pinion gear bearing and side bearings ? was that shim because of aftermarket carrier ?

Would this be the same for a 97 explorer 8.8? Also does the pinion depth differ if you change gear ratio or would it still use the same shim on the pinion? thanks

What’s all been done to the mustang performance wise?

I have a 2000 gt 5 speed and I noticed that the pinion has much play once I turned the shaft, if I rebuild with new parts what kind of settings do I need don't know much about gears. BY THE WAY GREAT VIDEO

I would never reuse axle seals and if my mechanic did not replace them while he already had it tore down and they started leaking with in a year or even 2 of having all that work done they would no longer be my mechanic. What $15 seal and 1 min of work while its tore down or the same work later only have to pay you to change the seal and have to pay for all the same work over again.