I had a grinding noise in my 94 LHS, so I checked the front, and the rotors and pads were badly worn. So I purchased and replaced the both front rotors and pads. A few days later the grinding noise returned. Thinking it needed rear rotors and pads, (bought the car used) I pulled both rear wheels, only to find the rotors and pads are like new.

Is there any other reason they would be grinding. It only does it when braking at a slower speed. Braking from faster speeds has no noise.

Calipers semm to be tight. (someone suggested stripped bolts on calipers)