i'm quite sure in the 90's trucks they only transmission's they used were the
4L60, 4L60E, and the 4L80E
4L60 is the 700r4
the 4L60 would definatally work, you'd have to cut your driveshaft though.
the 4L60E or the 4L80E wouldn't work at all, unless you had a Transmission computer, TCI makes them.
okay, anyways, to use the motor in your car, you'd have to either snag the ECM from the truck and parts of the wiring harness, or you could go and buy a Vortec intake manifold for use with a 4 barrel carb, you'd also need to get a 4 barrel carb. and an HEI vaccume advance distributer.