Brake Systems - DELCO-Moraine Single Piston Disc - Front: Description
Caliper is a single casting with one large piston inboard of disc rotor. It is mounted on the steering knuckle or a support bracket attached to front suspension. Brake rotors are cast iron with ventilation fins separating the two braking surfaces. Some models use a groove machined in the braking surfaces to help control brake noise.
Shoes are stamped steel with riveted linings. Most models use a wear sensor, a piece of spring steel riveted to the rear edge of inner brake shoe. The sensor produces a high pitched squeal when lining needs replacement.