Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Cadillac Tech question: Diff output seal in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I posted earlier about my 04 3.6 L that sprung a small leak on the driver's side output shaft seal. ...
- 02-08-09 11:57 AM #1Cadillac Owners Fanatic
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- Mar 2005
Cadillac Tech question: Diff output seal
I posted earlier about my 04 3.6 L that sprung a small leak on the driver's side output shaft seal. Dealer I trust quoted $355 for labor/parts to replace the one side.
My question: I read that if the leak is small that you can add about 1/3 bottle of engine stop leak to the diff and that might swell the seal enough to stop the leak in about 500 - 1,000 mi. Is this a good option to try first? Is it a good fix, or simply a temporary half ass fix? If replacement is the best option, can I go with just the one side that is leaking, or should I go both output shaft seals at the same time? (dealer said cost would double to do both). Just looking for a good alternative to the replacement route.
- 02-08-09 12:09 PM #2
Re: Cadillac Tech question: Diff output seal
I did mine a month ago but not at the dealer. 155$ CAN labor + part + tax included. took an hour to fix. Since then, 3k miles done and no leak anymore.
The stop leak is just a temp. fix and your differential is something very important for your safety so fix it for good, not temporary.
Go in a differential expert shop and ask him how much for the job and I'm sure it will be half of the dealer
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