Hello Group. I'm trying to nail down just what I've got here. I was given a 3 speed manual transmission that came out of a '69 or so chevy longhorn pickup, either a 3/4 or 1 ton and equipped with a smallblock; probably a 307. The transmission has an iron case, a 10-spline input shaft, and the case casting number is 3987948. The side cover has 7 bolts,and the casting number on it is 3952646. There is aso a small metal tag on one of the side cover bolts with the number 3968081QY. The tailshaft has no bolt bosses on it for a floor shifter, so I'm guessing that it was a column shifter. From what I've been able to find out by searching this forum, it is likely a saginaw, but I just wasn't sure. I'm planning to install this in my '31 A coupe behind a 327. Any help appreciated. Sorry for lack of pics. I do not have the transmission here at this time. Thanks. Greg.