SA is a 2:73 non-posi that came in a 71-72 Olds Cutlass. Same rear as Buick,but just used a different code. Yes,it is an 8.5” 10-bolt.
Thanks Brian Looks like a Buick, but it wasn't a Buick code. Was in a 70 GS 455. Currently has a 3.42 posi installed. Wanted to make sure it wasn't something rare that someone might need for a restoration before I use it Also, I noticed you have some Oldsmobiles. I have a 10/12 bolt Olds rear that has been sitting under my bench for 20+ years don't remember the details about gears etc., but I can look if you could use it Bob
The 71-72 Cutlass/442’s that were NOT built in Lansing Michigan got the same 8.5” casting as the 71-72 Skylark/GS. They even came with the trishield drums,like the Buicks.
