I bought a used Saginaw 4 speed last night. I am trying to identify this so I can get a shifter installation kit for my 64 Chevy II Nova. The following numbers are on it. Drivers side cast looks like 6261886. The pad has R3K31 stamped. To the front it looks like 5/16/72. On passenger side it has what looks to be 3U103993 on the pad and upside down its got 39256556 cast along with GM 14 and 3232. Tailhousing has N2 and 6261884 cast and a small area that looks like a cast tag with F262 on it. I think it has three rings on input shaft. Two are obvious but the third looks to be right at the end of the bearing retainer. You all have always been a great help so I wanted to try once again. Thanks for your time.