Thunderbird V6-232 3.8L SC (1989)
Fig. 2 Rear Disc Brake Caliper Assembly
Sliding caliper rear disc brakes are used on Continental, Mark VII & Thunderbird, Figs. 1 and 2. The caliper is basically the same as the larger front
wheel caliper, however, a parking brake mechanism and a larger inner brake shoe anti-rattle spring have been added.
The parking brake lever, located at the rear of the caliper, is actuated by a cable system similar to rear drum brake applications. When the parking brake
is applied, the cable rotates the lever and operating shaft, driving the caliper piston and brake shoe assembly against the rotor. An automatic adjuster in
the assembly compensates for lining wear and maintains proper clearance in the parking brake mechanism.
The cast iron rotors are ventilated by curved fins located between the braking surfaces and are designed to cause the rotor to act as an air pump when the
vehicle is traveling forward. The rotors are not interchangeable and are identified by a Right or Left marking cast inside the hat section of the rotor. The
rotor is secured to the axle flange in the same manner as a rear brake drum. A splash shield is bolted to a forged axle adapter to protect the inboard rotor
surface.
