There is a special tool you can usually borrow from the parts store. It pushes slight pressure on the piston while turning it back in.
August, 13, 2008 AT 1:07 PM
There is a tool, but if it is like the 2004 Freestar, it is not the cube style one, it is the round one. I found mine at Napa for 20.00. I also found that you have to take the piston almost all the way out and then twist it back in. Took alot of hair pulling before I figured it out. Make sure the little nubs on the pad fit into the piston when you put them back in.