I have two GTs a 70 and 71. On both of them the alternator pulley is out of line with the crank and waterpump pulley. The alternator is towards the front of the car about one pulley width. My question is are there spacers that are supposed to go behind the crank and waterpump pulleys? If not then how do I shift the atlernator towards the rear to line it up? Of course I can slot the holes but one shouldnt have to do that. Thanks guys.