Hello and thanks for donating
if your rotors are in good shape, suspect the fit of the pins with the calipers. If the pins and calipers have a sloppy fit, the caliper can cant out of true and create pulsation in the braking force. If the calipers are stuck on the pins, the calipers can not slide to adjust for wear differences between the inner and outer sets of pads and the rotors will be pushed out of shape causing problems. Typically, pads on the piston will wear faster than the ones on the caliper when the caliper is stuck on its pins. The piston pads tend to wear a bit more than the caliper pads becasue of friction between the caliper and pins.
Saturday, October 30th, 2010 AT 1:57 PM