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RPO code/ differential type?

This is a discussion on RPO code/ differential type? within the Drivetrain forums, part of the LSx Technical Help Section category; Is there a way to tell which differential i have based on my rear end's RPO? it's a 98 WS6 ...

  1. #1
    Junior Member
    Join Date
    Jan 2008
    Everett, WA

    1998 Firebird T/A WS6

    RPO code/ differential type?

    Is there a way to tell which differential i have based on my rear end's RPO? it's a 98 WS6 non-traction, but i dont know if it actually has an auburn or not. Is auburn the only brand of lsd they put in these? my dealers books doesnt specify which dif. But it also calls the v8 an LT1 in the drivetrain section instead of an LS1.. SOO i dont entirely trust the information in the book.

  2. #2
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Broken Arrow, OK

    Pewter metallic
    2000 Camaro SS

    Above is a link to all the RPO codes if you want to go through them.
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