brakes wear out. news flash. i did all 4 brakes with pads/rotors in last 5 yrs. sure had hoped that car would be gone. you gotta move on sometime? kid said front brakes were noisy. 1 pad was down to metal. messed up rotor. turns out caliper piston was seized too. put all new parts on. this was in july. last week kid said rear brakes were noisy. damn. turns out 1 rear pad was down to metal. rotor is messed up too. other side pads were at 10%. looks like new parts time. caliper pistons pushed in easy. felt smooth. caliper pins look good. not gummed up or cruddy. not sure why the brakes wore out at 40k miles? its life i suppose. but changing all 4 rotors kind of sucks. i thought rear pads last forever? we are on 3rd set now