Diff is leaking help
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,894
Likes: 12
From: Fort Myers FL
Cruise-In X Veteran
I would start by examining the breather vent on the top drivers side of the diff....
http://forums.corvetteforum.com/c5-t...d-removal.html
http://forums.corvetteforum.com/c5-t...d-removal.html
Pro
Joined: Jan 2005
Posts: 644
Likes: 17
From: O'Fallon MO
This was a common problem on C5's as GM had recalls on this issue back in early 2000's. Many were fixed under warranty ( cost to fix it at the dealer about $900 ).
Mike
Mike
Last edited by mhanley; Feb 1, 2017 at 12:27 PM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Vent could be stuck shut causing differential to build up pressure and leak
Seal could just be plum wore out.
If you pull the fill plug when the car is level and COLD, there should be a very slight vacuum in the diff case.
Here are some excellent post for you:
- C5, ragtopws6 , Upgrading your C5 rear with C6 Z06 guts, : http://forums.corvetteforum.com/c5-g...-z06-guts.html
-
- C5, Its_Go_Time, Output Shaft Install - Left and Right: http://forums.corvetteforum.com/c5-t...post1573407966
- C5 Differential Seal replacement: http://forums.corvetteforum.com/c5-g...on-photos.html
-
Seal could just be plum wore out.
If you pull the fill plug when the car is level and COLD, there should be a very slight vacuum in the diff case.
Here are some excellent post for you:
- C5, ragtopws6 , Upgrading your C5 rear with C6 Z06 guts, : http://forums.corvetteforum.com/c5-g...-z06-guts.html
-
- C5, Its_Go_Time, Output Shaft Install - Left and Right: http://forums.corvetteforum.com/c5-t...post1573407966
- C5 Differential Seal replacement: http://forums.corvetteforum.com/c5-g...on-photos.html
-
Drifting
Joined: Dec 2010
Posts: 1,776
Likes: 500
From: West Seneca NY
My car only had about 8000 miles on it when I installed my drop spindles, so I replaced my axle seal on the drivers side while it was apart, passenger side was fine, so I left it alone.
DRIVER SIDE
PASSENGER SIDE
DRIVER SIDE
PASSENGER SIDE
Burning Brakes
Joined: Jul 2013
Posts: 1,008
Likes: 57
From: Kensington MD
Not really a nasty job at all. IIRC it's just a matter of unbolting and hanging the brake caliper, unbolting the upper shock mount and upper control arm, then compressing the shock and swinging it out of the wheel well, which should let you pull the axle shaft out.
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Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,894
Likes: 12
From: Fort Myers FL
Cruise-In X Veteran
I got under the car again today. There was evidence of oil on the vent. But there is also evidence of the output seal letting oil out as well. I cleaned up as much as I could under there. Just gonna monitor the level of fluid for the next couple of drives and see if I am really losing fluid and cross that bridge of swapping the seal.