Alright. I got bored, and decided to check it out.
The old Bronco was a half inch wider then the B2. The B2 was 2 inches longer.
The old Bronco, from what I know off the top of my head, had a 3 on the tree for a manual, but it is a common swap to do 4 on the floor. Then again, they may have used the 4 for the inline six's they had, but again, I am not 100% sure.
I have no idea on the mounting locations.