Did you replace the brake hardware when you changed the rotors? I rarely ever went to the trouble or expense of replacing the hardware when changing rotors, but when I replaced the rear rotors on my Liberty, one of the pins that goes through the backing plate, shoe and hold down clip broke the day after I replaced the parking brake shoes. I made an awful metal on metal racket..Twenty dollars later I was all good again...Also, make sure your parking brake shoes aren't adjusted to tight, and dragging....Your parking brake can be adjusted underneath the center console:
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