10-Bolt casting #'s and sizes?

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rpoz11 · #1 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?

rpoz11 · #2 02-05-2006, 07:21 AM

69 8.2? : "3894859 NF" casting #?
71 8.5? : "3969278 NF" Casting #?

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