Had a squeak coming from the wheel and checked it out. Definitely needs a new rotor, but should the caliper have much movement? I could slide it several inches side to side and 1 pad is nearly worn down and one is not. I have changed lots of car, truck, and motor cycle brakes and the calipers are held solid. This would seem to be that when braking were applied, the piston would move the caliper versus pushing the pad against the rotor. Tried to upload a video to no avail.