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Stock rear end gears

This is a discussion on Stock rear end gears within the Firebird / WS6 forums, part of the Vehicle Specific category; I might be having a brain fart, but I can't find info on what the stock gears are for my ...

  1. #1
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    1999 Trans Am

    Stock rear end gears

    I might be having a brain fart, but I can't find info on what the stock gears are for my 1999 Trans Am. Any help? Thanks.

  2. #2
    Member stanger88's Avatar
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    Black on black.
    2001 WS6 M6 (stock)

    Door code...

    GU2=2.73's
    GU4=3.23's
    6-speed=3.42's Period.

  3. #3
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    3.23 is GU5

  4. #4
    Impounded
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    2000 Trans Am

    So all 6 speeds have 3.42 right?

  5. #5
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    Yep - look for GU6

  6. #6
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    Bummer, I've got 2.73.

    I found some 3.73 at LMPerformance.com for $219.99. ANyone ever get stuff from there?

  7. #7
    Member stanger88's Avatar
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    Black on black.
    2001 WS6 M6 (stock)

    Quote Originally Posted by 2001NBMZ28 View Post
    3.23 is GU5
    Misinfo on my part. GU5 is correct. THANKS!

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