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Early cars had 40% lockup. More diff info (archive)
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Posted by Bill R on December 10, 2001 at 07:21:25:

In Reply to: Was there a 3.45 LSD in the Coupes? posted by Rob on December 09, 2001 at 18:04:29:

Look on the right side of the case. There should be numbers stamped there. These are the numbers of teeth on the pinon and ring gears. 3.45s are 11 & 38. 3.64s are 11 & 40. 3.25s are 12 & 39. LSDs also had an S, which may be stamped or painted white.

2800CS had 3.45 with 40% lockup up through 1971. After that all ratio LSDs were normally 25%. These diffs were used up to 1982.


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