Differential Leak???
Thread Starter
Drifting
Joined: Aug 2002
Posts: 1,538
Likes: 290
From: Central MO
Differential Leak???
I took my Vette into the dealer for the standard GM oil change and check up (Dont flame me for this). Any way, when I got home I noticed a silver dollar sized area of fluid/oil under the differential. I cleaned it up, checked the plugs all tight, no visible fluid from the seals, and no more fluid this morning. Today after a quick run to the coffee shop and some errands, came home parked and had two drop of fluid in the same place again. Ran it by some Vette friends and they felt that my spirited driving :auto: may have thrown some diff oil out the top of the diff. Any one here, heard of that before or am I missing something else. I really dont want to take it back to the dealer unless necessary. This is a new Getrag 3.73 rear end with about 600 miles or so on it. Thanks! :seeya
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Re: Differential Leak??? (JCR)
Sounds like it's not the original factory unit. You may want to pull the top plug and check for overfill. This will cause it to push it out the vent.
Team Owner
Joined: Oct 2002
Posts: 20,161
Likes: 2
From: Spacecoast Florida
Re: Differential Leak??? (AZGASSER)
Had the exact problem on my '98. My Corvette Tech at local dealership identified the problem on several of the Vettes he services. He wrote a GM service bulletin fix for it that all dealerships can access.
It is a single cover plate bolt that seeps. Not the o-ring ,or a crack, or overfill,
or even hot expanded oil venting through the top vent hole.
If you would like to call him directly let me know.
It is a single cover plate bolt that seeps. Not the o-ring ,or a crack, or overfill,
or even hot expanded oil venting through the top vent hole.
If you would like to call him directly let me know.
Melting Slicks
Joined: Oct 2001
Posts: 2,786
Likes: 49
From: Sun Devil Country
Re: Differential Leak??? (keith5)
Had the exact problem on my '98. My Corvette Tech at local dealership identified the problem on several of the Vettes he services. He wrote a GM service bulletin fix for it that all dealerships can access.
It is a single cover plate bolt that seeps. Not the o-ring ,or a crack, or overfill,
or even hot expanded oil venting through the top vent hole.
If you would like to call him directly let me know.
It is a single cover plate bolt that seeps. Not the o-ring ,or a crack, or overfill,
or even hot expanded oil venting through the top vent hole.
If you would like to call him directly let me know.
Pro
Joined: May 2002
Posts: 638
Likes: 0
From: Payne Ohio
Re: Differential Leak??? (AZGASSER)
Just had to have my side cover and axles seals replaced on mine at less that 10K. Dealer did the work under warrantee and have had no re-occurring leaks as to date. The initial leak was a nuicience leak, about one to two drips a day over a two week period. They used dye and found the side cover leaking and also replaced the axles seals . This seems to be a common problem with the getrag.
Burning Brakes
Joined: Apr 1999
Posts: 947
Likes: 1
From: Lake Worth. Fl.,USA Fl
Re: Differential Leak??? (Bandit1)
Bolt leaking?. It has to get passed the "O" Ring to get to the bolts though. I remember that when I replaced my old O Ring it looked ok. It must harden under heat and pressure and a seepage results that finds its way to a bolt hole and then shows itself. Forget the damn O ring and use a good anaerobic sealer or even a good high temp gasket making silicone . That is the sure fire fix in my opinion.
