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How do I know what differential?

This is a discussion on How do I know what differential? within the Drivetrain forums, part of the LSx Technical Help Section category; How do I figure out whether I have the regular differential or the limited-slip differential? I have a 2001 Trans ...

  1. #1
    Member
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    Red
    2001 Trans Am

    How do I know what differential?

    How do I figure out whether I have the regular differential or the limited-slip differential? I have a 2001 Trans Am (non-WS6)

  2. #2
    Senior Member
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    Look for RPO code G80 (Axle Positraction, Limited Slip) on the drivers side door.

  3. #3
    Firebird Encyclopedia 9T8W66's Avatar
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    Navy Blue Metallic
    `98 Formula M6 HdTp

    All the V8 cars should have the limited Slip Differential.
    Craig
    Semi Retired Street Racer
    2012 Lava Red Mustang GT Coupe Brembo/3.73's
    Build Date 3/17/11, Last Lava Red GT

    Gone but not forgoten
    NBM `98 Formula M6 HdTp
    1 of 1 Build Date 3/12/98

  4. #4
    Junior Member
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    BLACK DEATH
    1999 Supersport M6

    Lightbulb

    +1. ALL V-8 LS1's, and most certain of LT1's as well. Not like my 86z28 with a 3.73 open diff that would spin in 3rd gear with one tire.

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