4 speed conversion questions

I am changing my 70 dart w/ 73' 340 motor to a 4 speed. I was wondering what year trans. would fit. I had found a trans. (w/ driveshaft)with the ball and trunion and heard that was 65' and prior. will this fit my car without having to modify it to work? Just not sure what are the best years to look for. any help would be appreciated. thanks.

Tail: C-95658-L
C-95639U