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diff service

This is a discussion on diff service within the Drivetrain forums, part of the LSx Technical Help Section category; this weekend i will try to change oil and new gasket on diff. i plan on going to local parts ...

  1. #1
    Junior Member znasty's Avatar
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    diff service

    this weekend i will try to change oil and new gasket on diff. i plan on going to local parts store is there a part number for the gasket? and im going to look at moble1 or royal purple 75w-90. do i need to get some additive also? does the royal purple allready have this additive?

  2. #2
    Moderator Cutlass's Avatar
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    We try to avoid royal purple. And yes you need the additive but you can add it later if you can't find it right away

  3. #3
    Junior Member znasty's Avatar
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    ok no rp i did search, can i get the additive at my local parts store?
    Last edited by znasty; 03-17-2010 at 01:40 PM.

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    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
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    some have it, some don't. If you can't find it, then try the dealership

  5. #5
    Junior Member znasty's Avatar
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    i found some additive for diff do i put the whole 7oz in

  6. #6
    NYSpeed.com WhatUpWhatUp's Avatar
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    whats the additive that we should put in ? cause i dont put any additive in when i change my oil.

  7. #7
    Exalted Cyclops 67CamaroRSSS's Avatar
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    2002 Z28 A4 NBM
    Sadly now demodded :(

    Quote Originally Posted by WhatUpWhatUp View Post
    whats the additive that we should put in ? cause i dont put any additive in when i change my oil.
    Posi additive. Allows the clutches (or cones depending on rr type) to slide against each other when going around corners.

  8. #8
    Member Lawnboy's Avatar
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    the gaskets leak! use a gas/oil RVT sealer, run a bead on both the rear end and on the cover, make sure both are super clean, Might as well order a TA cover girdle and blot kit,
    I run lucas oil/gear addative and lucas rear end diff gear oil ,a quart of each

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