4sp in a 72 duster

Found out my trams is a single mount 69 b body trans. Looks like ill have to swap tail housings to the b-e body dual mount. Will the tail housings swap without changing output shafts? Im still unsure on the f body pedals. Some say they work and some say they don't. I found an a body pedal assem. Out of a 73 duster with a 3 SPd. I heard these will swap. Any thoughts?