trans swap. drive shaft swap

Hi I have not been on in awhile I have a question. I have a 87 and 86 one is a 2200 and the other is a2000 both 6' beds and regular cabs I want to swap the transmissions thay are both 5speeds one has a 2 piece shaft and the other has 1 piece shaft. Can l swap jest the transmission or will both drive shafts interchange

The transmission is the same. Either drive shaft will work with both transmissions.

Any reason why the 2 different shafts

We, the Mazda-B community, cannot seem to figure out why the trucks were done that way. There doesn't seem to be any rhyme or reason.
My guess is the two-piece(which tends to be a quieter setup) came in the LX models... but I really haven't based that assumption on actual comparison between models. I just know that two piece shafts are better at isolating noise/vibration.