The "nailhead" or universal TH-400 pattern won't fit your car. It's an old Buick pattern that has a shallow bell housing. GM sold it as a "universal" trans because the shallower bell made it easy to use an adapter. No one makes an adapter for the pre 72 AMC six to any other transmission. If you need a stronger trans, the only thing you can do is install a Borg Warner model 11 or 12, or even a model 40 if you have the air cooled 37 now (probably have a 40 though). The 37 and 40 are nearly the same, except that the 37 is air cooled and the 40 is liquid cooled. IIRC the 37 has provisions for an external cooler though. You can run a cooler and that will help a lot. _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com