What do you guys think of swapping a 12v cummins into an 80 and retaining the stock drivetrain? The idea is do make an adapter that is similar to the Mark's V8 adapter. Basically one adapter for to bolt the toyota flex plate to cummins flex plate and then another to mate the cummins bellhousing to the toyota tranny. I have heard that the A442F is a fairly stout tranny and with an upgraded valve body and maybe a different torque converter it *could* handle a 6bt in stock form. I am fairly limited in my knowledge of auto tranny tunning so I know I need to do research there but does anyone see any flaws in this setup? Because I have a '94 the tranny has a seperate TCM which I a not sure if it use/needs a signal from the ECM or if it basis the shifting on the VSS and the TPS. Anyway I am far from diving into this but I wanted to see what others might have to say.