I have about a dozen Posi units from 65'-77 fullsizecars mostly Olds,Would like to offer them up to you guys & gals.These are all clutch type units.I do not know how to ID them.Any help would be appreciated Thanks

 

Here's one I pulled out from a 1968 full sized many years ago. Its got a big 700 cast into it. Several photos on this old thread. I understand this fits the 9.3" rear end used from 1967-70 for sure, possible back to 1965 but I don't remember the application well enough. Someone else will have to speak up (Joe_p?) John

https://classicoldsmobile.com/forums...1967-70-a.html