I've done it, but it's not easy. You need to cut about 1" off the input shaft of the A-833 transmission (cut right at where the bushing wear mark begins) & use a pilot bearing in the back of the engine.

In my case, the crank was partially drilled.

70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"