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pinion seal

This is a discussion on pinion seal within the Drivetrain forums, part of the LSx Technical Help Section category; What should I torque my pinion seal down to? And is ok to fill the tranny by the shifter hole?...

  1. #1
    Member 99yellowz28's Avatar
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    competition yellow
    1999 camaro m6

    pinion seal

    What should I torque my pinion seal down to? And is ok to fill the tranny by the shifter hole?

  2. #2
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    PEWTER
    2001 TRANS AM WS6

    check your blinker fluid and your muffler bearings too

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    The Bandit Wesman's Avatar
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    1998 Trans Am WS6

    Yes, you can fill the trans through the shifter hole.

    I'm assuming you're talking about torquing the compagnion flange nut when you say "torquing the pinion seal".

    The nut needs to be torqued so that the crush collar compresses and the pinion bearing preload is 10-15in/lbs for used bearings, or 15-30in/lbs for new bearings. Pinion bearing turning torque is checked with an inch pound beam style torque wrench.

  4. #4
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by Wesman View Post
    Yes, you can fill the trans through the shifter hole.

    I'm assuming you're talking about torquing the compagnion flange nut when you say "torquing the pinion seal".

    The nut needs to be torqued so that the crush collar compresses and the pinion bearing preload is 10-15in/lbs for used bearings, or 15-30in/lbs for new bearings. Pinion bearing turning torque is checked with an inch pound beam style torque wrench.
    This is correct, but keep in mind this measurment can only be taken when the pinion is the only thing in the rearend. Meaning the carrier and axles must be removed so the pinion is the only thing turning.

  5. #5
    The Bandit Wesman's Avatar
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    1998 Trans Am WS6

    Quote Originally Posted by Firebirdjones View Post
    This is correct, but keep in mind this measurment can only be taken when the pinion is the only thing in the rearend. Meaning the carrier and axles must be removed so the pinion is the only thing turning.
    +1. Good call.

    In the case of still having the rest of the rear installed, I believe the service manual states to measure the torque it takes to remove the nut, and then go a certain amount above that when you re-torque the nut back down.

  6. #6
    Member 98Hardtop's Avatar
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    black
    1998 Camaro Z/28

    I counted the threads and make 3 inline peen marks on the flange, nut and gear.

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