Quote:
Originally Posted by 1oldgoat
The code was 9783393 which I think is a 66 code.
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the 65 rear is 54.5 inside of back plate flange to flange
the date code on housing is a way to tell year of casting
i don't know casting # for 66 . ask on 66 67 forum if need
if you go to 64 65 forum do a search for (65 rear ) we have talked alot about this