Would a manual transmission from a 3.9l work with a 273, I think its a NV3500, but not sure? My brother in law has a wrecked 88 Ram 1500 with a 3.9 and 5spd tranny, I was wondering if the tranny would work in a 66 Valiant, and what mods would have to be done? If not are there any 5 speed manuals...