System Description

Fig. 1 Exploded View Of AC-Delco 3200 Series Caliper.:

Fig. 2 Exploded View Of Generation I AC-Delco 3257 Series Caliper.:

DESCRIPTION
The caliper has a single piston and is mounted to the support bracket by two mounting bolts, Figs. 1 through 4. The caliper assembly slides on the two mounting bolts.

Fig. 3 Exploded View Of Generation I AC-Delco 3264 Series Caliper.:

Fig. 4 Exploded View Of Generation II AC-Delco 3257 & 3264 Series Caliper.:

OPERATION
Upon brake application, fluid pressure against the piston forces the inboard shoe and lining assembly against the inboard side of the disc. This action causes the caliper assembly to slide until the outboard lining comes into contact with the disc. As pressure builds up the linings are pressed against the disc with increased force.