As stated we had more problems with factory and hi buck rotors and drums than the cheap ones.My Durango I did frt pads and rotors on about 5 years ago.Advanced stuff.Its still going strong.My kids 04 Ram Hemi same thing.He beats the snot out of it also.After doind thousands of brakes Im pretty much an expert.If the front were hanging you would know real quick.I know been there.If the rears werent doing anything the pedal should be real low and the rotors should have no wear and lots of rust.Old GM cars were noted for that as the park brake adjusted the rears and the pins stuck in the calipars.Rocky