As below, also a retired mechanic of 55 years in UK. I would always check the axle breather for blockage after fixing an oil leak. Good job Kenny.

@eddiereichel9354

2 ай бұрын

Sometimes just getting the vent unplugged fixes the issue. You can have a million years experience and not know everything. You would be surprised now many mechanics dont understand that suspension bushing bolts should be tightened at ride height. Heck Kenny here just posted the "funny looking valve cover video" There is a TSB about that issue. The PCV check valve goes bad and ruins the valve cover. Maybe he did it off camera but he never checked it. That is the root cause of the failure. When that check valve is ignored long enough the turbo is not long for life because its trying to pressurize the crankcase which its not designed to do.

@eddiereichel9354

2 ай бұрын

I wouldn't be surprised if we have a follow up video of "axle seal leaking" since the pinion and cover are both new seals they are the next weakest link.

Your awesome, what great knowledge your giving away. Hopefully the younger generation appreciates how valuable your teaching is. Thanks.

@WrenchingWithKenny

15 сағат бұрын

Thank you for your kind words & watching the channel. Keep wrenching 🔧

As a retired mechanic after 55 years in the trade, I used to do it exactly the same way. What I would also do is to clean up the seal surface on the flange with very fine emery paper lubricated with methylated spirits ( white spirits). Far less likely hood of leakage again. I do this for all seal surfaces. That said, excellent video. Thank you Kenny

@eddiereichel9354

2 ай бұрын

In almost every rear differential leaking issue I have come across the vent tube is plugged up.

@miguelvasquez4231

Ай бұрын

What can i do if i didn’t mark the nut that has the tension when i was doing this job that nut was loose so i figured their was no point on marking so i put everything on and i cant go over 10 mph or ill get bad vibrations could it be way too tight?

You’ve done this job many times and it’s worked fine. Personal preference, clean off first, mark etc, but polish seal edge of flange, reinstall with a little bit of gear oil on the seal lip. I’ve never liked using an impact to tighten up rather feel if you’re getting too close to damaging the crush washer. Ouch! overdid this as an apprentice, a lesson well learnt.

I would 100% want this gentleman to work on my vehicle.

@AK78240

13 күн бұрын

😂😂😂😂😂😂😂🤣

Great job and tips. I have shyed away from seal replacements due to the crush collar. Now I know another way to do it. Thanks.

Good evening Mr Kenny, hope you had a great Tuesday and thank you for the video sir. Your information is very appreciated and helpful

That's the exact way my father taught me when I was about 12 years old! Many decades ago! Great video Kenny!!

Count the threads as well as marking just like you did

Thanks for the great tip on marking the pinon Kenny. Taco bell with beer . 😅

I do thank you for making longer videos!

I've never replace the crush sleeve when replacing the pinion seal. I can't say how many pinion seals I have replaced but I will say it's a lot. I set many 9" Ford gears for IMCA and USMTS Modifieds and I have hammered the old crush sleeves out so I could set the preload on new gear sets. Never had a failure. Thanks for sharing.

Thanks for this vid Kenny, I've learned something today. I've always understood to retighten the pinion nut back to the original marked position. Interesting that you go slightly past this point, makes sense when I think about it.

I was glad to see the gloves were on when you had the fill plug in hand. Quite the metal sliver supply on the plug. Good tips on filling and making sure you know just how much to put in.

Excellent job same way ive done those fir years same also my dad taught me he run his own garage for almost 40 years till he got sick n passed away back 2001 but your great mechanic i love watching your channel

Do you not need to check the dif vent as well?

Great video. Thank you

I like your overloading trick and I completely agree that this method is more than adequate. My vehicle at just short of 250000 miles I think we'll be good for the remainder of it's life. It's probably been 40 years since I did this so I just wanted to see if there were any new addons I wasn't aware of. Thanks

I do almost the same, just I mark the socket and count the turns, and use a breaker bar,rachet. Just did 4 pinion seals this past summer.

Thx Kenny great video 📸

Good video, I learned something new

Great stuff. wish you had also done this on a 9 inch as Im about to tackle one but thanks heaps for the tips.

Yay Kenny! Good work!

great video thanks!!!

Great video

On one job I ran in to an after market device that positively locked the pinion nut in any position with wedging action from allen screws. This would allow you to set any preload you wanted even if the crush sleeve was over compressed and would avoid any backing off when reusing the pinion nut. I've tried red lock tite and had it still back off when trying to save the old crush sleeve.

Nice job

FWIW I like to check the diff breather while I'm there just in case it's blocked up with crud.

great video!

So. Does FoMoCo still use the yellow loctite on those 12 pt fasteners that you have the special socket for? I remember fighting to remove them back in the early 90’s.

how much more do you go past the original marks when tightening back up?..cheers

Loc tite on the bolts and pinion like factory? Maybe check diff. Vent for blockage? Just an idea.

Hey Kenny, I've got a 72 Chevy C20 with a Eaton HO-52. Would this procedure still apply?

Snappy make that socket for 12x12p drive line socket like yours, old tech I worked with said his Snappy at Ford said a 3/8" 12mm 12p extra shallow. The size of the impact swivels top was the special at time. I bought a 12mm 12p 3/8 impact swivel and 17mm for tranny, with 36" 1/2 to 3/8 ext.

Enjoy your content Kenny

Thank U.

Brother Kenny, you are way too funny when hearing the sounds from squeezing the bottles of gear oil into the housing and you say sounds like Taco Bell! LOL I enjoy seeing you have fun while working.

TY

I do these on semis all day and I wish it was this easy.

No removable loctite on the 4 flange bolts? I blew up 2 sockets getting the originals off.

Add a piece of hose to the cap on the bottle to allow it to be held up to add fluid to differential?

Watched another video. Guy used a torque wrench to see how many inch pounds it took to turn shaft before loosening the nut. He then tightened nut slowly to achieve the same torque torque

@brycelund7155

2 ай бұрын

Only accurate if the differential carrier is removed. This is the only way to get the nut tightened properly. This is the old school way and still the best way.

A 12 inch piece of tubing on the fill cap makes getting the bottles empty much easier.

Is this the same process as a 2001 8.8 or what I call a 10 bolt?

I believe the numbers on seals and bearings refer to their measurements that would make a good short video..

The new crush washers,a pain to compress.Some older rear ends do not have a crush washer.Replaced the pinion seal in my dad's 1946 Dodge pickup,has a steel sleeve instead of a crush washer in the differential.

I don’t know why you marked that u joint. I only do that when I have to replace the carrier bearing to get all the u joints lined up.

I know “silicone” is a popular slang term for sealant, but everybody has been using urethane based sealants for a few decades now, far superior sealant.

What kinda Tri Pod do you use for video and camera? Is this the impact you use? DEWALT 20V MAX* XR Cordless Impact Wrench, 3/8-Inch, Tool Only (DCF890B)

The bag gear lube is the best.

What kind of school did you get your automotive Tech training and how many years?

I have ford f150 XLT 2009 model supercrew, do all pinion seal have the same size? because they say that in your differential back cover have 10pcs bolt, you got 8.8 size of pinion seal, if you got 12pcs bolt in your differential back cover you got 9.75 size of pinion seal, is this true? So that i know what size i’m gonna buy it. Thanks for the reply.

If you just re-torque the pinion nut like you did the first time you're going to go past where you were. Essentially unless you get new bearings, you can keep using the crush sleeve. Bearing wear is always going to make the crush washer a half a thousand "longer" than it needs to be.

7:50 leverage is a wonderful thing

On that seal puller grind the tips rounded and if you are careful you wont damage the housing as easily.

Just working on the old 9.75 in. Ford. I think that was the original gear oil.

If you have seals leaking always check breather up top. Will get clogged with dirt dobbers.i put one on my f150 with a closed cap one way breather that wont clog for a Tacoma

Recently I thought its old, check the rear diff oil, that square drive was in so tight that the drive on the racht rung off. I did get it out and it did need some oil. Wish the last guy had taken your class

Those impact guns can be rebuilt DIY if you want to keep it.

Maybe throw a rag over gear set b4 wire-brushing old rusty sealant.

Do you verify the diff actually has a crush collar? Not many of them do. Ford 9 inch and some late Mopar 8.75 do. Maybe some newer ones do too. If no crush collar, then Kenny’s method works, you just end up with slightly tighter flange nut torque but no change to pinion preload because pinion preload is set with shims at original assembly. If it has a crush collar, this method could result in overloaded pinion bearings and burnout. With a crush collar, to maintain correct pinion preload and pinion nut torque, add a .020 thick shim washer on the pinion shaft before installing the flange, then tighten to your marks but not further.

@Joystickoperator

Ай бұрын

That is why he said when tighting back you turn a little past the previous mark. Which in turn would be your 0.020.9.75 Ford have crush sleeves as 8.8 also

Sunex makes a driveline swivel head set

What if the pinion nut was showing only 1 thread deep? When reinstalling the pinion nut back on I had to go beyond the 1 thread deep mark because the flange was loose if I stayed at the 1 thread in mark. Have you experienced this and what would you recommend? Thank you.

@WrenchingWithKenny

Ай бұрын

A lot of times, that is a self locking nut. It will get tight at the end of the nut when it hits the threaded area. You could just keep going until you feel drag on the pinion. I hope the info helps. Keep wrenching 🔧

@Phoenixrising8313

Ай бұрын

@@WrenchingWithKenny Thanks alot. I have and will. Thanks!

"uhhh taco bell"... I felt that one haha

Shouldn’t that pinion nut be torqued? Thanks for the video.

@WrenchingWithKenny

Ай бұрын

Only if it's a new build or the crush collar was just replaced. You wouldn't be able to achieve the correct torque & end up destroying bearings. They way I show you is basically a cheat. I haven't had one come back. Thanks for watching & keep wrenching 🔧

i bought a a set of northern sockets 1/2 incn drive for $20 dollars had a job had to remove rusty bolts broke 2 1/2 breaker bars 1 was a snap on never broke the socket

Not using a new pinion nut I would use locktite or stake the old nut.

Are the marks to keep the correct backlash?

@brycelund7155

2 ай бұрын

The marks are for the pinion bearing preload. Backlash is set by shimming the carrier.

Does anyone know the tool used to remove the driveshaft bolts?

@WrenchingWithKenny

7 күн бұрын

It's a 12mm 12 point. You can use a wrench or a socket. There are specialty sockets for it too. Keep wrenching 🔧

Why do you not use impact sockets?

@drew5992

24 күн бұрын

I question a lot of real mechanics on that also. 🤔

Self tapper slide hammer. Didn't know there was any other way.

I would use a torque wrench on the driveshaft just because if it lets loose it will ruin the truck

Best tip I can give to clean those oiled surfaces is a wooden outdoor broom, which you cut into small blocks, so you have 6 or so out of a single one. Hard bristles easily shift the dirt, and only a tiny amount of solvent needed.

Great video but I dont know about that shortcut. I always replaced that crush washer. Not worth risking a comeback and the increased risk of eating the cost of a rear diff job.

Go to HF and get a pump to fit those bottles, no more tapered nozzles required.

I don't understand the three marks before disassembly. How do you know how many threads you used tightening the nut, as that is how the tension is determined. What am I missing? Thx

@philspear73

2 ай бұрын

If you notice it took some tightening to get it to line up. Then he tightened a bit more past. That's how you know it's good.

@needhelp2453

2 ай бұрын

You don't know how many threads. As you tighten your listening for the sound to change and you're feeling for the play to go away. When the play is gone and the sound changes abruptly, you continue to tighten until the mark on the nut is just beyond the pinion mark. The mark on the flange is just not that important. Also, he was feeling for the rotational torque to increase slightly.

@mikea1973

2 ай бұрын

U are supposed to count the threads..u are correct..

@needhelp2453

2 ай бұрын

@@mikea1973 if you remove the nut with an impact like he did and installed it with an impact, how can you possibly count the threads.

@mikea1973

2 ай бұрын

@@needhelp2453 u bump the impact in small increments ..remove the socket and count the threads..its not rocket science..just like u count threads on a outer tie rod..so to keep the toe correct.

I would think torquing the pinion nut would be a given instead of guessing at it

@donames6941

2 ай бұрын

Some dont have a torque set you go by feel

@robertbramblett9124

2 ай бұрын

You can't feel it with a battery impact

Kenny likes clean before he puts his own grease in.

Just a fyi replace the 18 volt battery with a 20 volt adapter will give you a little more power and the old 18 volt DeWalts are bulletproof to begin with to me there better than new ones,,if you have to try your local flea market...

Do you ever use Torque wrench? LOL. That's is very important!!!...............

I can almost guarantee the u- joints were already replaced ! Now there °180 off ! 50/50 chance its not out of balance ! An axle shaft balance test can confirm this !

Vent tube or cap on top of axle should be checked for blockage so that pressure inside axle tube releases. I never use chrome sockets (usually 12 point) for impact, air or electric, they were designed for hand tool use only. Most people don't have in their tool inventory the black impact ( 6 point) sockets and 12 point impact sockets are usually found on the expensive tool trucks only.

@brycelund7155

2 ай бұрын

Chrome sockets still have a lifetime warranty so send it.

" You don't have to go Bananas"🍌

You did not have dif fluid in bulk.

Nothing personal, but my dad taught me cleanliness was next to Godliness when working on mechanical things, and only enforced when working on Air Force aircraft. It amazes me how many YT channels don't clean items before disassembling parts, even though they will often state--be careful this crud doesn't get into the part. Clean the crap off the parts before taking them apart. It does no harm and can only prevent future problems. I simply don't understand the reasoning behind not getting rid of grease and grime before taking something apart. I hate paying for a mechanic's work and being unable to tell if he's actually done anything, as it's just as grimy after as before.

@eddiepond86

2 ай бұрын

This is a lot of the reason why I’d rather fix things myself. In a mechanics defense, they don’t get paid to clean.

@bryanalbright3019

2 ай бұрын

Did you check the vent for air flow. Blockage could cause high pressure when hot. 😢

@barrygrant2907

2 ай бұрын

@@eddiepond86 But a good mechanic cleans up before doing a dirty job and after. I'm not saying a steam clean is called for, but a simple spray and wipe goes a long way toward showing care was taken.

@goodcitizen64

2 ай бұрын

I ran into the problem of not being able to clean stuff prior to repairs while in the US Army. We're in the field a lot and had no means to clean the area beforehand, the best I could do most of the time was a wipe down with a rag if we had any dang rags! The Army was much different than the AF...even when working on the helicopters and such! Working on the tarmac was a different animal than working on vehicles and heavy equipment!

@ginog5037

2 ай бұрын

​@@eddiepond86Lazy hack auto mechanics do get paid to clean, many elect not to.

When used correctly, you won't have a reason for replacement. The wall is thicker for impacts and chrome are thin wall. Pay me now or pay me later. They can reject replacement for misuse.

Lost count on how many mistakes

Comment for the anti-Al-Gore-rhythim 😆 😆

And that tool could damage the oil sling. But on the nut going beyond that CAN BURN OUT THE BEARING - very very bad should have match the mark and not go beyond. Going like that is high in inch-pound. You didn’t even scrap the housing and just passed a rag - HORRIBLE THAT ONLY TAKES two minutes. FOR THIS SHOP TO ALLOW THIS TYPE OF WORK - PERFORMED BY THIS MECHANIC - I WOULD STAY THE HECK AWAY FROM THERE!!!

Very shoddy work at best seal was cock eyed going in and he just forced it with a hammer job will need redone shortly

He really doesnt like bannanas😅

That's going to be on Kenny's tombstone 🪦"I've seen that too many times before" 😂