Not quite sure what my Bro. brought by, but it looks to be a cast iron 4 speed that needs a little TLC etc. etc.. I did so happen to get a couple of numbers off the side cover is ( GM 6261886) Tailshaft housing is (6281884) front bearing retainer (1) bar GM (3859093) Housing on machined part # N107667. Hopefully these here numbers can tell me what this here trans came out of and what manual I will need to rebuild it. Thanks.........