Could the noise you experiences also be described as a "creaking" noise by chance? This is what I am dealing with in the front. At rest when I depress the pedal I can hear it creak. It does creak at the same rate that I depress the pedal. I had the caliper open tonight and I can see on the shims where the piston have for lack of better terms... made their footprint. I greased them and it didn't seem to help in the least bit. So what do you guys think?
Caliper or those worn shims?