12 bolt ID

bparke11
Newbie Poster
Posts: 3
Joined: Tue Feb 25, 2014 10:23 am

Re: 12 bolt ID

Postby bparke11 » Sat Mar 01, 2014 11:18 am

Thanks, I'll open it up soon and report the findings. I'll also look for the date casting.

bparke11
Newbie Poster
Posts: 3
Joined: Tue Feb 25, 2014 10:23 am

Re: 12 bolt ID

Postby bparke11 » Sun Mar 02, 2014 10:02 pm

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 #.

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monzaz
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Posts: 832
Joined: Tue Nov 13, 2007 7:56 pm
Location: RICHFIELD, OH

Re: 12 bolt ID

Postby monzaz » Fri Mar 07, 2014 1:05 am

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
J D Race


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