1966 SS396 Chevelle L78 orig paint Detroit Craigslist

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**L_e_e** · #1 09-22-2018, 06:53 PM

Standard gear on a L78 was a 3.73, 3.31 was optional.

**Fast67VelleN2O** · #2 09-22-2018, 07:14 PM

Quote:

Originally Posted by L_e_e

Standard gear on a L78 was a 3.73, 3.31 was optional.

It may have been optional, but how likely with an M21?