I have a 10 Bolt posi rear that I bought for a project and have decided to go another route with so now i'm trying to sell it. I would like to know however what it is so I don't give the new owner the proper info. The DIff housing if you are looking at it from the top front side has numbers cast on either side of the yolk. these numbers read GM59 on the left and 3969277NF on the right. The ring gear has the numbers 3910823 stamped on it followed by 15:41 GM Which is obviously the ratior which I did know was 2.73 by the 41 tooth ring gear and 15 tooth pinion. THanks for your help Tucker
pictures please- c-clip rear or bolt in rear? CASTING number wil lbe a chevy I am sure. 10 bolt 8.2 1970 -1972 is the 3969277 casting for 10 bolt 8.2 chevy rear. c-clip rear Just a stock rear from a chevelle Monte carlo or el camino Jim JD
