[Lattimer]

TREMEC makes 2 different aftermarket 5 speeds, in 2 different configurations, and 2 different input shaft setups. They also make multiple OEM transmissions for many different cars. Which TREMEC is it?

If its a TKO500 or TKO600, it can be configured for a Ford or a GM. GM version is a different input shaft than Ford, and I believe a different bell housing bolt pattern.

If it is a GM version, it will bolt directly to any bell housing that fits a Muncie car 4-speed. It will also bolt directly to an older bell housing for a truck saginaw with the smaller input bearing retainer. For a bell for the later saginaw or others with the larger input bearing retainer, you can get an adapter ring made to make it fit (thats what I did).

You will need a later clutch with the fine spline count for the later input shafts.