Having read the warnings from people like Shawn about not turning the park brake nut; I left my caddy calipers alone in the box & didn't touch them. The piston is out a little though as they were shipped. Problem is that with the new pads in them; they won't fit over my new rotors!! I need them to go back approx. 3/16 of an inch. They look like there's enough room for the piston to move back but how do I do it?? A special trick; special tool?? Help!!!! Brian 89KBlazer Build it Right or Don't build it at all!!