Leaky Rearend?
Thread Starter
Drifting
Joined: Apr 2001
Posts: 1,337
Likes: 52
From: Wentzville, MO.
Leaky Rearend?
Although it hasn't made any spots on the floor, noticed that my 99 rear diff shows some signs of leakage on the carrier. I have a GM extended warranty. How is this problem usually resolved? Will the dealer need to open the pumpkin? Possible to have a set of 3.73s or 3.90s slipped in at the time of repair? :cheers:
Drifting
Joined: May 2002
Posts: 1,607
Likes: 1
From: San Francisco CA
Re: Leaky Rearend? (99SilverC5Coupe)
There is a vent on the top of the differential carrier. It is normal for some fluid to exit the vent to the extent that dirt and dust mark the area that the fluid has covered. If there are no drops on the floor than it should be ok.
Race Director
Joined: Mar 2001
Posts: 19,965
Likes: 6,769
From: Bonneville Salt Flats
Re: Leaky Rearend? (99SilverC5Coupe)
If a typical dealer, they may suggest "Depends." :lol:
Seriously, check the vent first; it would have to get much worse before I'd turn it over to the dealer.
Seriously, check the vent first; it would have to get much worse before I'd turn it over to the dealer.
Drifting
Joined: Jul 2002
Posts: 1,386
Likes: 80
From: NC
Cruise-In IV Veteran
St. Jude Contributor
Re: Leaky Rearend? (bob98)
I have the same problem on my 98 with the tranny. It appears to be a bad rear seal. Since I'm paying the labor to have it fixed I figure I'll go ahead and upgrade the diiferential to a 3:42. :yesnod:
Pro
Joined: Jan 2003
Posts: 526
Likes: 0
From: Tampa fl
Re: Leaky Rearend? (99SilverC5Coupe)
My 99 coupe also had a small leak from the driver side of the diff(4 or 5 drops per week on floor). I took my car to the dealer and the service REP gave me an est for $400 to repair seal on diff. My car only had 30k miles but was out of warranty(over 3 yrs old). I went in and spoke with the service MANAGER and asked him if it was typical for a $50k car to be leaking a vital fluid with such low mileage and no history of abuse? he agreed and did the repair for free! :) The troubling part for me was that the est called for 4 hours labor to do repair which was the bulk of the bill, parts and fluid was less than $30.00. Then when I got my car back and looked at the repair ticket the mechanic stated it took 1.2 hours to complete. There is no doubt in my mind that if I was paying for this repair I would have been billed for 4 hours labor. I know they use a book to quote repair est and there is nothing wrong with this practice, I just wanted to share this experience with everyone so you can try to be an informed consumer. KNOWLEDGE IS POWER! :cheers:
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