12 bolt rear end id
 

hi can someone id this 12 bolt for me. here goes 3896839 NF on pass side of housing. GM51 on drivers side housing and on the pass axle tube MS1207W2 with a slanted E underneath that bunch of numbers and letters cheers

Re: 12 bolt rear end id
 

any help here guys ??? The ones on the axle tube have me stumped

Re: 12 bolt rear end id
 

I know on 67-72 rear ends there is a group of letters and numbers stamped in the top of the passenger side tube. I have used these numbers to look them up.

Re: 12 bolt rear end id
 

I looked up different combos of your letters but no 12 bolt trucks. 67-69 have 2 letters. 70-72 should have 3.

Re: 12 bolt rear end id
 

what year is the truck? The only MS I could find is a 1967 C30, dual wheel 514 gear ratio...