Rear Disc Brakes

DESCRIPTION - DISC BRAKES (REAR) - SRT-4
Rear disc brakes are standard on this vehicle (Fig. 14). The sales code for this performance brake system is BR3. Each rear disc brake consists of the following components:
^ Caliper - single-piston, floating type
^ Caliper adapter
^ Shoe and lining assemblies (Pads)
^ Rotor - drum-in-hat type





BR3 rear disc brakes are similar to and operate the same as standard PL brakes, but differ in the following ways. Like the standard PL with rear disc brakes, vehicles with BR3 rear disc brakes are equipped with a one piece caliper assembly that has a 36 mm (1.42 inch) piston and use a solid non-vented 270 mm (10.63 inch) drum-in-hat brake rotor. But unlike the standard PL, the BR3 rear disc brake caliper is painted red. Also, the BR3 rear disc brake rotor has a pad contact surface approximately 3 mm thicker than the standard PL. BR3 brake rotors can be easily identified by the recessed machined area near the hub center (Fig. 15).





To accommodate the additional width brake rotors, instead of using wider calipers, each rear brake shoe metal backing plate is 1.5 mm thinner than that of the standard PL with rear disc brakes (Fig. 16). When replacing brake shoes, often referred to as pads, only brake shoes meeting the Original Equipment Manufacturer (OEM) formulation (such as Mopar replacement parts) should be used.

NOTE: Special care should be taken to assure that the correct brake shoes are used only with the correct rotor.

As with the standard PL rear disc brakes, the BR3 caliper adapter is mounted to the rear suspension spindle. The adapter is used to mount the disc brake caliper to the vehicle (Fig. 14).