FIRST REMOVE THE WHEEL, THEN THERE ARE 2 TORX STYLE BOLTS AT THE BACK OF THE CALIPERS. REMOVE THOSE 2 BOLTS IF YOU HAVE TO GENTLY TAP THE CALIPER OFF OF THE ROTOR. NOW ONE PAD IS PUSHED INTO THE PISTON WITH A CLIP ON THE BACK OF IT THE OTHER SITS ON THE ROTOR FRAME. REMOVE THEM JUST MAKE SURE YOU TAKE A GOOD LOOK AT THE POSISTION THEY WERE IN. THEN WHAT I DO IS, I HAVE A PISTON SPREADER TOOL TO PUSH THE PISTON BACK FLUSH INTO THE CALIPER. I PUT ONE NEW PAD AND ONE OLD PAD IN THE CALIPER PUT THE TOOL BETWEEN THE PADS AND TURN THE SCREW UNTIL THE PISTON IS BACK FLUSH. IF YOU DONT HAVE THIS LITTLE USE A C-CLAMP, WITH ONE OLD PAD AGAINST THE PISTON SQUEEZE WITH THE C-CLAMP UNTIL FLUSH, THEN CLEAN THE CALIPERS A LITTLE BIT WHERE THEY SLIDE ON THE FRAME AND RUB A LITTLE GREASE ON THEM. THEN REINSTALL THE PADS. NOTE: WHEN PUSHING IN THE PISTON DO NOT HAVE THE OTHER SIDE CALIPER OFF YET BECAUSE PUSHING IN THE PISTON ON THE SIDE COULD CAUSE THE OTHER ONE TO POP OUT OF THE PISTON. YOU DONT WANT THAT HEADACHE. SO ONE SIDE AT A TIME. I HOPE I HAVE BEEN OF SOME HELP.