I've come across what I believe is a posi from a pre '64 Buick. I did a seach but couldn't come up with a way to identify it. Is this posi a Buick? If so, what years would it fit?
This is definatley from a GM product, but there is no identifying numbers on the case. Any other ideas??
The ring gear # 136522114-43GM25. Has 43 teeth. The pinion gear # 136522214-43 and has 14 teeth. Also has J, 65 and 4 stamped on the gear. The housing has 156 stamped on the side.
Really? I don't think the 3.07 is the listed in any of my '62 literature or shop manuals. Hmm, now I'm second guessing myself :laugh: .
Any idea what the spline count is? '62 should have 33 splines, I think in '63 they went to 30 or 31. '64 might have been when they changed it though.
I know my '64 Riv. is 31 splines. I've owned it since new so at least this is a given. The car was built 12D, meaning the 4th. week of Dec. 1963. Tom T.
It's got 31 splines, sounds like it's definately a 63. BTW, it's for sale, shoot me a PM if interested.