Replacing rear brake pads

Have a 2001 that I need to changed the rear pads on. I have the wheel off and have push the piston back in. There is a clip on the outside of the caliper but when I pry on it the whole caliper seems to flex/move Like I have not seen on other cars. Does the whole caliper come off or what. Any help would be appreciated.

Well I figured it out. I had to remove the caliper slide bolts, like on my Lightning, then is was easy to change the pads. You need a 7mm hex key/allen wrench to remove the slide bolts.