Originally Posted by eloc431962
The difference is 1.5625 inches (1-9/16)
Like posted above, the short style is 1 9/16 closer to the block but mounting the assesories are night and day. Correct me if I'm wrong, short style requires alt to be mounted on driver side, which may interfere with the PS along with different pulleys. PITA. All of that was true for me at least.