rear differential seal leak
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 1
From: lawrenceville il
rear differential seal leak
I own a 2001 zo6 with a DTE stage 2 differential.3 months after my local Performance shop installed it a leak occured at passenger side axle shaft seal.They have replaced seal 3 times in a effort to stop the leak. Also replaced side cover with new seals. New shaft.Still leaks.Any suggestions on how to solve the leak problem would greatly be appreciated.
Last edited by CHRP 1; Dec 10, 2008 at 08:10 PM.
Tech Contributor
Joined: Jan 2007
Posts: 19,472
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From: Dyer, IN
I own a 2001 zo6 with a DTE stage 2 differential.3 months after my local Performance shop installed it a leak occured at passenger side shaft seal.They have replaced seal 3 times in a effort to stop the leak. Also replaced side cover with new seals. New shaft.Still leaks.Any suggestions on how to solve the leak problem would greatly be appreciated.
Tech Contributor
Joined: May 2008
Posts: 2,843
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From: Howell Michigan
St. Jude Donor '09-'10-'11
It sound to me like the shop hasn't found where the leak is really coming from. Why did they replace the shaft? Did it show wear where the seal rides? It's a stretch, but I would have them check the case vent for damage or blockage.
Regards,
Eric D
Regards,
Eric D
Tech Contributor
Joined: Jan 2007
Posts: 19,472
Likes: 1,171
From: Dyer, IN
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 1
From: lawrenceville il
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 1
From: lawrenceville il
shaft had a groove worn in it.
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Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 1
From: lawrenceville il
it seems like the leak occurs after car is driven and parked.no blowby on undercarriage.shop says it is coming directly from seal .
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
What shaft? The seal rides on the half shaft, is that what they replace? Any vibration? Did they install the DTE fluid, which is a special mixture of Redline 75W-140? Were the break-in procedures followed?
Has the vent been checked for proper operation? If you are building pressure it will exit the weakest area, which may that seal.
Most important, have you contacted Phil at DTE? He is most knowledgeable on his setups and would have been the first person I would contact. He can likely point you to the problem or what to look for, and it may still have some warranty left on it if you haven't raced it.
Has the vent been checked for proper operation? If you are building pressure it will exit the weakest area, which may that seal.
Most important, have you contacted Phil at DTE? He is most knowledgeable on his setups and would have been the first person I would contact. He can likely point you to the problem or what to look for, and it may still have some warranty left on it if you haven't raced it.
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 1
From: lawrenceville il
Thread Starter
Instructor
Joined: Mar 2004
Posts: 185
Likes: 1
From: lawrenceville il
What shaft? The seal rides on the half shaft, is that what they replace? Any vibration? Did they install the DTE fluid, which is a special mixture of Redline 75W-140? Were the break-in procedures followed?
Has the vent been checked for proper operation? If you are building pressure it will exit the weakest area, which may that seal.
Most important, have you contacted Phil at DTE? He is most knowledgeable on his setups and would have been the first person I would contact. He can likely point you to the problem or what to look for, and it may still have some warranty left on it if you haven't raced it.
Has the vent been checked for proper operation? If you are building pressure it will exit the weakest area, which may that seal.
Most important, have you contacted Phil at DTE? He is most knowledgeable on his setups and would have been the first person I would contact. He can likely point you to the problem or what to look for, and it may still have some warranty left on it if you haven't raced it.
Last edited by CHRP 1; Dec 10, 2008 at 08:50 PM.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
If you clean it well, can you isolate the leak the axle seal (i.e., confirm the cover is OK). With the differential in the car, correct installation of that seal would be hard but not impossible so it could just be a bad installation.
