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Pinion Seal replacement

This is a discussion on Pinion Seal replacement within the Drivetrain forums, part of the LSx Technical Help Section category; I am planning on changing my pinion seal and wanted to know if anyone had any tips? Also dose anyone ...

  1. #1
    Dcdrummer LS1buckey's Avatar
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    pewter
    1999 Pontiac Trans Am

    Pinion Seal replacement

    I am planning on changing my pinion seal and wanted to know if anyone had any tips? Also dose anyone know what size the pinion nut is or what is the best way to pull the yoke out? Any info will be great.

    Thanx,

  2. #2
    Impwnded Smkn_TA's Avatar
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    Bright Red
    1999 Trans Am Ws6

    Here is a good tip, if you're not using a car lift. When you lift the back end of the car up, and take the parking brake off to spin the rear tires. Please put large blocks in front of the car. It is a dangerous job when you are not using the lift. It is an easy job with the right tools though. Driving the seal in is the hardest part in my opinon.

  3. #3
    Impounded
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    Red
    99 TA

    there are so many things to consider when replacing a pinion seal it isn't even funny.I'll bet your real trouble is worn pinion bearings causing the seal to leak.Guess how i know this?????

  4. #4
    Member 98ls1blackbird's Avatar
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    Black
    1998 Trans am

    The nut is 1 1/4", use a good impact wrench to get it off. When you retighten it you are supposed to have 20 in/lbs of bearing preload.

  5. #5
    Dcdrummer LS1buckey's Avatar
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    pewter
    1999 Pontiac Trans Am

    We already changed it. It's been a few weeks sence and it seems to be fine now, No leaks yet. Why do you say it's the bearing?

  6. #6
    Impounded
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    Red
    99 TA

    well if it stopped then you should be ok,i seen alot with pitted bearings from sitting(water damage) then the seal leaks.

  7. #7
    Dcdrummer LS1buckey's Avatar
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    pewter
    1999 Pontiac Trans Am

    I'll keep an eye on it just to make sure. Thanks for all the info everyone.

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