[horse482]

There were three different manual transmissions used in that time frame. The first was the old 4-speed, second is the light duty 5-speed, and third is the heavy duty 5-speed(has granny gear). The transmission are the same except for the tail shaft is longer on the 2x4 that it is on the 4x4, so to use a trans from a 2x4 on a 4x4 you will have to pull the trans down and change the tail shaft over.