Part 2 - C5 Corvette Rear Differential Leak Repair (Steps A-Z)

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C5 Corvettes are known for leaking driver side Differential Covers. Take a look as finish the repair of this common issue so you can do it yourself - or decide you want someone else to do it!
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30 сен 2024

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Комментарии : 78

@markbrumbaugh8211 2 года назад

Thanks for the vids on this! Looks like reinserting that trans/diff stud was left out… does the double nut technique work to get it back in? What do you torque it to?

@Flopsaurus Год назад

31 ft-lb for the stud, then 37 ft-lb for the nut onto the stud. GM's document 1826526 gives the torques.

@markbrumbaugh8211 Год назад

@@Flopsaurus Thanks. I completed this repair last year, so hopefully that's what I torqued it to ;)

@collinmackay6010 2 года назад

First and foremost..thank you for taking the time to explain and provide detailed explanations for each and every step. Your videos continue to motivate and inspire each one of us that are truly passionate about our C5’s!! Still get the pre game jitters but continue to gain confidence thanks to your hard work. Looking forward to the next one!!

@Toys4Life 2 года назад

Appreciate the kind words and glad you enjoy them! Thanks for taking the time to let me know!

@chadatkinson3224 15 дней назад

Thanks for the videos, as always! I see mine has inquired a leak and is most likely this, but I still haven't gone underneath yet to confirm. So, question for us people without a lift. Is it possible to remove the left exhaust on a 3-ton jack stands on highest level?

@Toys4Life 14 дней назад

Unfortunately, probably not - unless you have aftermarket exhaust that has a union behind the axles as well.

@travisarmstrong3229 2 года назад

Thanks for the reply over on part 1 video sir. Another question over here: the reinstall of the stud is edited out of this video. Before or after the torqueing of the cover bolts? I would imagine it would compress the seal on one side if you torqued it too much. Just a little snug after torqueing the cover down?

@Toys4Life 2 года назад

Good point sir, I would torque the stud last after all of the other cover bolts are torqued.

@travisarmstrong3229 2 года назад

So double nut technique just wouldn't give enough grip on the stud. But a country boy can survive. Used a 20" drill bit extension to drill through the nut and stud together. Pinned the nut to the stud. Broke the stud loose then removed the pin/nut and spun out the stud.

@Toys4Life 2 года назад

Nice 👍

@BRS_DIY 10 месяцев назад

fwiw - Mobil 1 LS 75w90 already has limited slip additives in it (hence the LS in the name). I emailed the Mobil 1 Technical Support Center to 100% confirm, and a Lubricant Technical Support Engineer replied "Do not add anything to our LS 75w90 product - it already has limited slip additives."

@Toys4Life 8 месяцев назад

I am aware of this but with friends cars I like to be safe than sorry and add it anyways. I will try this on my own car to (since I drive mine very spirited and am always listening for anything unusual while driving) to see if I notice any negative effects at all to be100% sure it works fine. Thanks for the comment!!

@ericshirley3492 2 года назад

Thank you so much for your detailed video and explanation. It is very much appreciated. Just one question/observation. I noticed on each of the 1-quart containers of Mobil 1 Synthetic Gear Lubricant LS, it says in smaller lettering Limited Slip Friction Modifier Included. With this modifier included, is also necessary to add the 4 oz of AC Delco Limited Slip Axle Lubricant?

@Toys4Life 2 года назад

I don't think so, but I do so anyway just to be sure, that's not the best answer in the world.

@icurt06 2 года назад

I really enjoyed this video series. I never really understand why bolts were torqued and retorqued to a specific degree, so I googled it. Because the friction effect of each bolt varies, the angle the bolt rotates before the installation torque is reached is not constant. Higher friction will cause torque to rise more quickly. Because the angle of rotation is smaller, the bolt tension generated is also proportionally less. This is the theory behind angle control.

@Toys4Life 2 года назад

Thank you! Agreed - it is all about making sure you get the proper stretch on the bolt so it holds as designed. Too much stretch and it breaks, too little stretch and it will not stay tight. Cheers!!

@mwdunn3 2 года назад

You're one smart feller. Great job as usual. Very thorough and no nonsense.

@Toys4Life 2 года назад

I appreciate that!

@RicheySynthetics Год назад

Just out of curiosity, do you need to clean and prep with the prep spray on the actual differential housing or is it just the cover? As with all your videos I appreciate your attention to detail and watching them has taught me lots of things and how to do some things better and correctly. Look forward to more to come.

@Toys4Life Год назад

Both would probably be best, I just do the covers though because it's not really practical to try to mask everything off properly on the actual differential housing. Appreciate the kind words!

@markwest9447 2 года назад

Beautiful attention to detail. I am surprised GM just didn't make a gasket for 2 secondary protection, instead of using that gel... I can pretty much assure you most mechanic shops are not going to be as detailed as you are. Do you own a shop, are you an engineer by trade? Great Work...👍

@Toys4Life 2 года назад

Thank you for the kind words sir! I agree a fair number of shops would just whip it together and hope it comes out good. I just take a ton of pride in my work, enjoy the process and hate to do things twice!!!

@fastclient1232 2 года назад

Great video. Very informative with easy to understand step by step process.

@Toys4Life 2 года назад

Glad it was helpful!

@tylerdzugan9596 Год назад

Have you seen this happen on the passenger side before? I believe my Z06 has this happening on the passenger side.

@Toys4Life Год назад

have you ruled out the axle seal?

@Glide1992 Год назад

Your instructional videos are excellent. I just hope I never have to do it.

@Toys4Life Год назад

I appreciate that!

@peterlegari385 Год назад

Thank you for making a great video. Very informative.

@Toys4Life Год назад

Glad you enjoyed it!

@miguelsantos9606 Год назад

Does this wood apply to a 2005 c6 mind is is leaking to

@Toys4Life 10 месяцев назад

@warrengale9131 Год назад

Fantastic job

@peterbeane2817 2 года назад

thanks

@Starkiller.c6 2 года назад

Would this be the same for c6 aswell?

@Toys4Life 2 года назад

I don't think so but I'm not positive.

@Flopsaurus Год назад

No lube on the o-ring? That's a great way to roll it or tear it.

@Flopsaurus Год назад

But I see GM's procedure doesn't call for it either. Strange.

@Toys4Life Год назад

Have to be careful not to contaminate the anaerobic sealer with grease/oil.

@link9alink9a71 2 года назад

I noticed where's the stud you can't put gasket maker there ...

@Toys4Life 2 года назад

There is a little that gets in that area - but your are correct - there is a cutout there so it gets much less surface area. Did you just finish yours?

@link9alink9a71 2 года назад

@@Toys4Life yes I follow you step by step great 👍

@Toys4Life 2 года назад

Nice, good to hear!

@Z06GT1 2 года назад

Thank you for another excellent video. Your videos are really helpful. I have some questions: 1. Do you put any kind of lubricant on the axle splines that go through the wheel bearing to minimize rust? 2. I noticed that you torqued the axle nut to 118 lbs-ft as specified in the service manual. I have read that this specification was changed to 160 lbs-ft and then changed again to 140 lbs-ft with Loctite 272. Do you have any information about that? Thank you.

@Toys4Life 2 года назад

Hi there - thanks for the comment! 1. If the splines already have enough oil/grease left on them I leave them as is. If they looked dry I would smear a very light coat of grease on them to keep rust away. 2. I had not heard about the revision(s) to the service GM Service Manual. That unfortunately is not uncommon... I will have to look into it further. Also, the axle nuts are one time use only so by using a new one - that should help quite a bit to ensure they stay tight. I suspect many re-use the nut (it doesn't seem like a big deal) and I would think that may well account for some cases of them coming loose.

@anthonyardizzone3792 Год назад

Another must see video for anyone performing the differential leak repair on a C5. Information is provided in a short format that covers all steps needed for a successful repair. Thank you.

@Toys4Life Год назад

Glad you found it helpful sir thanks for the comment!!

@Debkghtulvkfjkjfxjjcj 2 года назад

1052942 is only $18. Why not just buy that if it’s recommended?

@Toys4Life 2 года назад

You could and most probably do. I feel better about using a Permatex product and knowing it is properly cured by using the surface prep (essentially a cleaner/catalyst for aluminum to aluminum applications. Quite a few folks have not had the repair work over the years and I cannot help but wonder if the GM stuff is missing the surface prep to allow the anaerobic gasket maker to properly cure.

@LIGHTNING351 Год назад

Awesome!

@Toys4Life Год назад

Thank you! Cheers!

@johncuthbertson2044 2 года назад

I just picked up my C5 and before I bought it, I noticed the rear end appears to have a minor leak. I can't wait to be able to start tending to some of the things I've found need some attention. I live in Canada and right now, it's too cold and too wintery to get some work done. This video was great to give me some direction on how to diagnose and fix the leak. Thank you!

@Toys4Life 2 года назад

I'm not far away from canada, a few more weeks and I'll be pulling mine out of its hibernation too!

@DigitalDissident 2 года назад

@Toys4Life 2 года назад

Thank you!

@richarddobreny6664 2 года назад

maybe i missed it but did you also do the axle seals as well? i mean, since everything was already apart…

@Toys4Life 2 года назад

Absolutely, it's at the very beginning of this particular video.

@derekmartin8127 Год назад

Love the explanation for the anaerobic sealer.

@Toys4Life Год назад

Appreciate that!

@stephenlarson9148 2 года назад

Have you ever had someone tell you that a little whine from the diff is normal? I had a shop install a 3.42 diff into my automatic car and they said it was normal to make a little noise.

@Toys4Life 2 года назад

I don't see any reason why 3:42's shouldn't be as quiet as your previous gears. Does it make the noise on acceleration, on coasting / deceleration, or all the time?

@stephenlarson9148 2 года назад

@@Toys4Life it varies by speed and throttle input.