[Oldsguy]

Do a search on this subject. I think I remember a post back in December maybe that discussed this. The Olds 12 bolt is very difficult to get diffferent parts for. If I remember correctly, somoene mentioned that this tranny was only used for a few years before Olds started using either the 10 bolt or the corporate 12 bolt. I can't remember all the specifics but like I said, use the search, I am sure it is there.