New Timken T case seal, still have a leak

Discussion in 'GM Powertrain' started by Ralph S, Jan 31, 2011.

  1. Ralph S

    Ralph S New Member

    I changed out my T case rear drive shaft seal, it's the NP8 auto t case bty. Used a Timken seal instead of GM seal that the dealer wanted $70 for. Anyway still have a little leak. Has anybody had a similar problem? Do i need to let this seal set in and see if the leak goes away or should i just drop the money on a OE seal.

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