hey people need a bit of help with this one, drivin along the other day and I hear metal on metal grinding ffrom my rear brakes. On further inspection find out that my pads are thru to the metal, my alloy and disk were rather hot and I put this down to the metal on metal contact. Anyway this afternoon I change the break pads, the rear left caliper piston was seized but I eventually managed to screw the piston back and fit the pads. However my left hand wheel is still getting hot and it appears the left hand pad is bindin to the disk, the wheel still moves but its stiff as hell. As far as I was aware only the actual piston on a valver rear caliper moves so I cannot understand how the left hand pad is binding and the inner one is not. Is the caliper supposed to slide along the main bolts that attach it to the rear hub or is it just the piston that moves?