This is probably the single most-asked question here. The answer:
Open the driver's door and look at the sticker with the different codes on it.
If you have an '02 manual, B01B indicates you have the LSD.
If you have an '01 auto, B02C indicates you have LSD; if B02A then you don't.
I assume that the codes are the same for the 02/03/04 autos and the 03/04 manuals.
Industry Editor, Moderator, All-around Car Nut and the official my.IS Grandpa
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