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View Full Version : 10-Bolt casting #'s and sizes?


rpoz11
02-05-2006, 07:00 AM
Ok, I am trying to determine all of the 10-bolts made.
There are:
7.5, 8.2, 2nd 8.5 ring gear set-ups made by GM.
What are the years for each & casting #'s for each?
http://www.yenko.net/ubbthreads/images/graemlins/confused.gif

rpoz11
02-05-2006, 07:21 AM
69 8.2? : "3894859 NF" casting #?
71 8.5? : "3969278 NF" Casting #?