Brake Shoe

They press against the drum. They often serve the parking brake. They wear slowly. Shoes on rear drums often last much longer than front pads because the rear brakes do less work. The drum must be removed to inspect them. Self-adjusters keep the gap to the drum small as the lining wears, but they can seize, leading to a long pedal or weak handbrake.

The wheel cylinder pushes the shoes outward.

Worn shoes reduce braking. Contamination reduces friction.