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leaking differentials,,is there a fix?

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Old Apr 29, 2007 | 01:25 AM
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Default leaking differentials,,is there a fix?

My recently purchased '04 coupe was very dry uunderneath when I inspected it. Now a small puddle collects on the garage floor beneath the differential, after a few days. I think its the differenal. Is there a fix for this. Perhaps an easy fix and a difficult fix? Thanks.

HP
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Old Apr 29, 2007 | 01:46 AM
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type in differential leak in the search bar and you will see at least 50 threads on this very common problem,
just had mine fixed under warranty $675.00.
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Old Apr 29, 2007 | 04:30 PM
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My 04 started at about 8,000 miles. Have had it into the dealer 3 times and finally got it stopped. Was all done under warranty. As the post above noted, it's a very common problem. If yours is out of warranty you might be able to talk them into helping with the cost. Good luck.
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Old Apr 29, 2007 | 05:13 PM
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I thought mine was the diff... turns out it was the tranny. The rear tailshaft seal leaks often, mine is leaking from the front as well... Its not cheap to fix
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Old Apr 29, 2007 | 05:50 PM
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Mine leaked but not around town. Maily when I drove hard or did some interstate driving. Dealer said it tends to leak more when it gets hot.
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Old Apr 29, 2007 | 08:52 PM
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Sucks...hope you get it all fixed up
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Old Apr 29, 2007 | 09:13 PM
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About all you can do is get the seal and/or cover plate replaced. It took GM three times to finally get my differential leak fixed.
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Old Apr 29, 2007 | 09:37 PM
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I've had my done 5 times and last year it leaked again. Before doing anything else, I drained the fluid in the rear end and replaced it with Red Line. Believe it or not, it hasn't leaked since. I've done alot of reading and I feel the problem is internal pressure and temperature. Red line says it reduces temp by as much a 7 degrees. Try it, what do you have to loose. tc
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Old Apr 29, 2007 | 10:03 PM
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Mine did, I had it fixed, it sucks, but what can you do, it is one of the few things that you can bet on happening. CLB, diff leaking, the OEM glass targa pealing.
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Old Jul 12, 2007 | 01:24 PM
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the left cover on my diff is leaking, is this the right TSB?

03-04-20-006 (how can I see what it says and the number of hours needed, etc)
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Old Jul 12, 2007 | 01:28 PM
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Originally Posted by HP Ain't Cheap
My recently purchased '04 coupe was very dry uunderneath when I inspected it. Now a small puddle collects on the garage floor beneath the differential, after a few days. I think its the differenal. Is there a fix for this. Perhaps an easy fix and a difficult fix? Thanks.

HP
Heres the TSB. Its quite a fix if you dont have a lift

http://corvetteactioncenter.com/kb/q....php?qstId=616

I had mine done when it was still under warranty
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Old Jul 12, 2007 | 01:31 PM
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Mine has had this problem 3 times - all fixed under warranty. Around $650 for mine.
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