Cadillac Tech question: Diff output seal

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 2 of 2
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. ...
  1. #1
    AmericanMuscle is offline Cadillac Owners Fanatic
    Join Date
    Mar 2005

    QuestionCadillac 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.

  2. Remove Advertisements

  3. #2
    Spyke's Avatar
    Spyke is offline Cadillac Owners Connoisseur
    Automobile(s): 2005 Cadillac CTS 3.6L VVT
    Join Date
    Sep 2007
    Montreal, QC

    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

  4. Remove Advertisements
    Cadillac Forums

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

What Cadillac(s) do you own? (Or type NONE)

Please select your insurance company (Optional)

Your date of birth and age are displayed in several places on the forum. Only the administrator will have access to your date of birth should you choose to hide it via the privacy option below.


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts