so both my rear calipers on my car are squeaking now. only when i brake it goes away so i know it has something to do with the pads. ive taken both calipers off multiple times and lubed up the caliper slide pins but the caliper always seems to stop sliding and sticking to the rotor. ive replaced the pads twice now so im starting to think it could be the rotors causing the pads to wear uneven and jam the caliper from sliding. any input would be helpful because i cant stand a squeaking car.