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Re: 12 bolt ID
Posted: Sat Mar 01, 2014 11:18 am
by bparke11
Thanks, I'll open it up soon and report the findings. I'll also look for the date casting.
Re: 12 bolt ID
Posted: Sun Mar 02, 2014 10:02 pm
by bparke11
I opened the cover and found 41 teeth on the ring gear and 16 on the pinion...so 2.56:1. I unfortunately couldn't find the date casting, however I saw where one may have deteriorated beyond recognition on the fwd middle flange adjacent to the other casting serial #.
Re: 12 bolt ID
Posted: Fri Mar 07, 2014 1:05 am
by monzaz
Yep a lot of 2.56 2.73 12 bolt rears out there alright.
Edge of the ring gear might have the date tooth count and ring part number...Spin the ring and wipe the edge with a rag. Jim