Single Piston Sliding Caliper

The single piston sliding caliper assembly is made up of a sliding caliper housing assembly and spindle. On 2 wheel drive models, the supporting member and steering arm are cast as one piece and are combined with a wheel spindle stem to form an integral spindle assembly. On 4 wheel drive models, an integral caliper support and steering knuckle assembly contains a bolted-on spindle and dust shield.
The ends of the inner shoe and lining assembly are within the spindle assembly. An anti-rattle clip is positioned between the shoe and spindle assembly at the bottom of the caliper. The outer shoe flange bearing rests against the shoe locating and torque surfaces on the caliper housing.
The caliper is positioned either on the spindle or knuckle assembly against machined surfaces at the top end. The caliper and spindle assembly is retained by a caliper support key and spring, while a key retaining screw prevents the key from sliding out of the spindle assembly.
A square section seal fitted into a groove in the caliper cylinder bore, and a rubber boot seal the piston and caliper bore.Torque from the inner shoe is transferred directly to the spindle or knuckle assembly, while torque from the outer shoe is transferred through the caliper to the spindle or knuckle assembly.