I picked up j/y parts off a grand cherokee and did the rear disc swap. My new pads are wearing funny. Wore alot more on the top than the bottom. Rotors were turned and are wearing more on the top than the bottom. I see the parts stores list specific part # for left and right calipers. I have no idea which side mine came off of. Is it possible the strange wear pattern is because I put the calipers on the wrong side?