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rear seals leaking

This is a discussion on rear seals leaking within the Drivetrain forums, part of the LSx Technical Help Section category; ok so i replaced my rear axle bearing bearings and seals like 8 months ago. I noticed a very smal ...

  1. #1
    Senior Member JayTA98's Avatar
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    Mean Black
    1998 Trans Am

    rear seals leaking

    ok so i replaced my rear axle bearing bearings and seals like 8 months ago. I noticed a very smal leak in one of the seals. I drips maybe a drop but is not spraying every place.

    My question is do seals go bad that often? I used timken bearings and seals.
    I heard of people putting some RTV when installing the axles back to help seal better. any suggestions? thanks.

  2. #2
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    Black
    1998 Z28

    RTV on the OD of the seal to seal it to the housing.
    Did you clean-up/condition the axle surface that the seal spins against ?

  3. #3
    Senior Member JayTA98's Avatar
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    Mean Black
    1998 Trans Am

    If i remember correctly I cleaned and wiped the race area of the axle. I also keep the axle in the center position while I put it back in.

    So the RVT is on the outside of the seal? the metal ring that fits in the rear axle tube? I can see the leak is from the rubber area in between the axle race and the seal itself.

  4. #4
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    '02 WS.6 / '07 Suburban

    I wiped a thin film of RTV around the axle tube before installing the seals in my 12 bolt. I remember that 35th had a hell of a time with an axle seal in his 9".

  5. #5
    Moderator 35th-ANV-SS's Avatar
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    02 35th LE Camaro SS

    Correct. Use RTV on the OD of the seal to where it seats against the ID of the housing.

    Also put gear oil on the axle before sliding it on.

    Here is my thread on my 9". Been good ever since! 3rd time was a charm for me

    Axle Leak?

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