Crank pilot bushing

. Trying to put in my 4 speed tranny, but I'm about 5/8 of a inch from bolting up to the bell housing and tranny won't go in any further. I installed a new pilot bushing into the back of the crank. I installed the bushing flush with back of the crank flange. My question is this the right depth? I'm 99 percent sure that the old bushing was flush .also, or is there something else that the tranny is bound up on. Clutch alignment tool goes right in,