4.22 diff should be stamped BTA 539
3.9 diff should be stamped BTA 1223
3.727 BTA 535
>From the special tuning book compliments of George Marinos.
Frank
Daniel Thompson wrote:
>
> I've just purchased a very nice differential for my bugeye, looks as
> good as new inside and out. No signs of wear on any mating surfaces. The
> seller assures me it is a 4.22. "Why", I ask. "Because someone wrote it
> in felt pen on the casing", he replies.
>
> I believe that the only way to be sure is to count the teeth. Can
> someone remind me how many there should be on a 4.22. Or is there really
> a number cast into the casing or elsewhere that gives it away?
>
> thanks,
>
> Daniel T.
--
Frank Clarici
Toms River, NJ
Lots of LBCs
http://www.exit109.com/~spritenut
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