Noise And Chatter Or Pedal Pulsating

Disc has excessive lateral runout. Disc thickness varies (sides out of parallel). Shoe and lining knockback after violent cornering (pump pedal to correct). Groan or chatter with car creeping slightly (increase or decrease pedal pressure slightly to correct). Excessive clearance between shoe and caliper. Anti-rattle retainer missing or out of position. Brake disc rubbing caliper housing. Rear drums out-of-round. Wheel bearings loose. Rear drum distorted by improper nut tightening. Caliper mounting bolts too long.