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C5 Rear Side Seal Differential Leak.....

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Old 07-22-2008, 04:52 PM
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brzman
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Default C5 Rear Side Seal Differential Leak.....

Has anyone else encountered this problem on theier C5.
I have heard it was pretty common.
And does anyone know if this was a Dealer Recall ??

thanks
Old 07-22-2008, 04:56 PM
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1FUNC5
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oh yeah!!!! I have had 3 of my c5's do it....there is suppose to be a larger o ring that gets installed
Old 07-22-2008, 04:56 PM
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1FUNC5
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however it was never addressed as a recall
Old 07-22-2008, 05:44 PM
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brzman
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I was quoted $200 for this job, that sound about right ?
Old 07-22-2008, 06:00 PM
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Bills03Coupe
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Originally Posted by brzman
I was quoted $200 for this job, that sound about right ?
For a differential seal replacement, $200 is low. This is a fairly involved job, as the differential has to be removed, and the seals replaced.
Old 07-22-2008, 06:02 PM
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I got it done under warranty --- it would have been about $1500-2000.
Old 07-22-2008, 06:04 PM
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I think were talkin about a different seal,
as far as i know its an O ring seal.
Old 07-22-2008, 06:15 PM
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c5streak
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My '04 was done under warranty, but the dealer said it's normally a $300-$400 job.
Old 07-22-2008, 06:31 PM
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Default good price

had mine done in nov. last year, bout 3 hr labor and part is cheap. pulled wheel, axle nut,pulled the tie rod end,one ball joint, removed drive axle and poped it out. not a big deal.
Old 07-22-2008, 06:42 PM
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I hope the $300 - $400 price is accurate, mine just developed the problem this weekend. Having read enough posts about it I'm in the habit of always checking, and sure enough a small spot has appeared on my garage floor.
Old 07-22-2008, 06:49 PM
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PostShawn
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It's common. I was quoted $300-500 from a couple Corvette shops. I was told a dealer would have been probably $500-600. I haven't had mine done yet though.
Old 07-22-2008, 06:58 PM
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PETE O.
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Yeah, Butt Leak Mines got one too. Looking at the fix article a guy could probably do it himself but I'm gonna try to find a reputable shop in Reno, NV. Anybody got any ideas?
Old 07-22-2008, 07:09 PM
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tbrent
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Just started on my baby as well

Sorry to the OP, but glad this post was here as I will be looking for mine to get fixed...

Old 07-22-2008, 07:40 PM
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Is it always on the driver's side? Or does it happen on either side and should you look to replace them both as long as you're doing one side?

Guess I'm also on this list...
Old 07-22-2008, 07:53 PM
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I just had mine replaced a couple of months ago. The dealer charged me around $400 and it only took a few hours. 400 miles later and no leak yet. Don't forget to baby (no WOT) it for he first 300 miles. If not, you might just rip the new seal up and then have to do it all over again.
Old 07-22-2008, 08:33 PM
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doug doo wop
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Originally Posted by Vette-Dream
Is it always on the driver's side? Or does it happen on either side and should you look to replace them both as long as you're doing one side?

Guess I'm also on this list...
It's almost always on the left side. Late last year both of my C5's had a leaking rear at the same time and were covered by extended warranties. Just today, my '02 was at the dealership getting the right side repaired, under warranty. The corvette mechanic said that it is very rare for the right side to leak. So hopefully my '04 right side won't leak.
Old 07-22-2008, 10:29 PM
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I had a rear seal leak three times on my previous C5. Dealer fixed each of them under warranty, and the third time was the charm for me in that it didn't leak again. As far as I know, there was no recall for this problem.

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Old 07-22-2008, 10:43 PM
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vettesmith02
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You know, I just remembered... he did some gear work in the diff as well, there was a bulletin for my VIN

It was only a few Vettes on the day of my build...

Sorry to scare you if I did...
Old 07-22-2008, 11:11 PM
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JEEP/C5
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Do it yourself if you ever replaced the cv joints on any fwd car before. It was no harder than my old Honda Civic. I replaced mine 3 years ago and it went fine. cost me around 50 bucks and it took me 4 hours or so but I took my time to clean up all of the grease that was slung around the rear axle. Make sure you get the GM positrac additive for the rear end when you refill the gear lube.

The new seal from GM is an improved design (I could see the difference). They also suggest replacing the o-ring that seals the cover. I was able to do it with common hand tools and the excellent writeup that I found on this site.

The drivers side seal seem to be the most common side to leak. Just replace the side that is leaking - I would not worry about the other side if its not leaking at all.

Make sure you use wheel bearing grease to lube the new seal were it meets the axle and you will not have any seal "break-in" issues at all.

Good luck.
Old 07-22-2008, 11:18 PM
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vettesmith02
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Originally Posted by JEEP/C5
Do it yourself if you ever replaced the cv joints on any fwd car before. It was no harder than my old Honda Civic. I replaced mine 3 years ago and it went fine. cost me around 50 bucks and it took me 4 hours or so but I took my time to clean up all of the grease that was slung around the rear axle. Make sure you get the GM positrac additive for the rear end when you refill the gear lube.

The new seal from GM is an improved design (I could see the difference). They also suggest replacing the o-ring that seals the cover. I was able to do it with common hand tools and the excellent writeup that I found on this site.

The drivers side seal seem to be the most common side to leak. Just replace the side that is leaking - I would not worry about the other side if its not leaking at all.

Make sure you use wheel bearing grease to lube the new seal were it meets the axle and you will not have any seal "break-in" issues at all.

Good luck.
Good info! Thanks for sharing!


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