See Figures 1 and 2
Rear hydraulic disc brakes are available as standard equipment on the Eldorado and Seville models and as an option on some Full Size models. The brakes are almost identical in design and operation to the front disc brakes, with the exception of the parking brake mechanism that is built into the rear brake calipers. When the parking brake is applied, the lever turns the actuator screw which is threaded into a nut in the piston assembly. This causes the piston to move outward and the caliper to slide inward mechanically, forcing the linings against the brake disc. The piston assembly contains a self-adjusting mechanism for the parking brake.
With the exception of those on the 1986-89 Eldorado and Seville, the rear disc brakes are serviced by following procedures detailed in the Front Disc Brake section. As for the 1986-89 Eldorado and Seville, any procedures which are different from those pertaining to the front brakes are detailed below.