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rear gear lube and additive

This is a discussion on rear gear lube and additive within the Drivetrain forums, part of the LSx Technical Help Section category; 01 z 273 ratio w posi.(50,000 k original owner) what recomendations for replacement of the lube(weight) and posi additive if ...

  1. #1
    the cake is a lie twozs's Avatar
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    black 01 red 73
    01 z28 and 73 z28

    rear gear lube and additive

    01 z 273 ratio w posi.(50,000 k original owner) what recomendations for replacement of the lube(weight) and posi additive if any. obviously synthetic .

  2. #2
    2 SS's are better than 1 Jays00ss's Avatar
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    NBM / Silver
    00 SS / 71 SS Elcamino

    75w90 Royal Purple Don't need additive. Best by far you'll need to buy 3 qts because you need a little over 2 to do the job.
    Last edited by Jays00ss; 08-11-2007 at 04:04 PM.
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

    1971 SS ElCamino 402 Big Block 550HP

    2006 Silverado 2500HD 496 cubic inches of pure muscle

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    Just me Y2KPewterSS's Avatar
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    Pewter metallic
    2000 Camaro SS

    Quote Originally Posted by Jays00ss View Post
    75w90 Royal Purple Don't need additive. Best by far you'll need to buy 3 qts because you need a little over 2 to do the job.
    CCW SP 500s 18x10 275/35 18x11 295/35
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  4. #4
    Member whiteLS1TA's Avatar
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    Artic white
    2001 Trans am

    i use redline. i just did the rear end fluid and the tranny fluid all i use is redline

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

    Mobil 1 75W-90. Didn't add the limited slip additive, Synthetic gear oil isn't supposed to need it.

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