a friend of mine has an 80's dodge pickup with a 318 and a 727 transmission. the trans went bad and he has access to another one, but the other one has a different tailshaft on it.

from what i was explained, its b/c of a 1 peice vs 2 peice driveshaft.

Anyways, he was wondering if he can simply swap out the tailshafts without fear, or is there something else he has to do/impossible etc?

any advise would be great b/c he's on quite a budget... you should see the truck