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Rear End Whine '01 Z28

This is a discussion on Rear End Whine '01 Z28 within the General Help forums, part of the LSx Technical Help Section category; They should be zero play in the bearings. Any play is bad....

  1. #21
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    They should be zero play in the bearings. Any play is bad.

  2. #22
    Junior Member David Ray's Avatar
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    Onyx Black
    2001 Camaro Z28

    Then I think I'm screwed. I hate it when that happens.

  3. #23
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Make them fix their f-up...if you can trust them to do it correctly.

  4. #24
    Junior Member David Ray's Avatar
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    Onyx Black
    2001 Camaro Z28

    That sounds like a plan. I think I'll slow-walk my car back there tomorrow and see what's up after I get a second opinion.

  5. #25
    Junior Member Blackbandit's Avatar
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    98 Trans AM

    How did you make out after bud? Did you get it fixed? What was the verdict?

  6. #26
    Retired NOT tired SteveC's Avatar
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    SOM
    2001 Z28 (Sara)

    I too think the nut is over tightend, also, you should have had the stock pinion seal replaced with a solid metal crush sleeve. I had this done when I upgraded to 3:73's (A4).

    SteveC

  7. #27
    Member DaddySS's Avatar
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    Black
    2000 Camaro SS Conv.

    I assume the mechanic did not put a new crush collar in there and therefor it is almost certain that he overtightened it. Unfortunately the only way to fix it correctly is to pull the differential, replace both pinion bearings, crush collar and seal.

  8. #28
    Member TA98's Avatar
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    Black
    1998 Trans Am

    Mine makes noise only when i let off the gas because the pinion bearings have play in them and the driveshaft flexs a certain way when not on the gas and causes a high pitched whine. Its annoying as hell. But I hope to get it fixed later this week.

  9. #29
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    midnight blue
    2000 z-28

    my 2000 z wined for some 2 yrs, also had a scrapping noise. took it apart in garage found carrier bearing on left side bad. had new bearings pressed on put it all back togeather sounded good for 3 days or so then the wine came back and i noticed gear oil in the drive. pinion nut was loose so i tightened it up and the wine stopped again. 3 days later i noticed it was winning again, pinion nut was loose again. went to gm and bought a new nut for 7$ put it all back togeather no more problems. the nut loses it holding ability..

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