Report Front Brake Issue/Question in 1965-83 Avanti Posted July 17, 2007 Could be just dirt around the pads, keeping one against the rotor after the pedal is released, ...or one pad so worn that the piston is sticking in the out position. 1. Check the rotor faces for radial rust streaks from rainwater if the car hasn't been driven a lot recently; since you aren't experiencing a pull to one side, this may be the most likely cause. If not, and changing the pads doesn't cure it... 2. With car jacked up and wheel removed, grip opposite sides of the rotor and wiggle it to check for looseness (bad/loose wheel bearings); do that again at other clock positions; also make sure the rotor spins freely without binding. 3. Check to see that the rotor is centered in the caliper (use feeler gauges between the caliper and the rotor front & rear, on both sides)... if the measurements are not all really close, there are shims available for the caliper mounting bolts to correct the positioning. 4. When a brake booster goes bad, it can cause the brake pads to stay snugged against the rotor (generally you'll also notice there's less than the normal brake pedal movement before the brakes firm) 5. Measure the thickness of the rotors where the pads contact it; I believe the minimum thickness is 0.3 inches (don't have my shop manual handy, you'll find the minimum dimension there) 6. Check for a warped rotor by attaching a dial indicator to the caliper and measuring runout as the rotor is rotated; again, the minimum allowed run-out is in the shop manual. 7. A very slight brake fluid leak conceivably could cause pad "skipping" on the rotor surface (not likely). Good luck.