On Armada models equipped with a rear auto-leveling suspension, turn the ignition key to the OFF position before raising the vehicle. This procedure applies to front and rear disc brakes. Remove the cap from the brake fluid reservoir and remove about two-thirds of the fluid. Discard the used brake fluid properly. Loosen the wheel lug nuts, raise the front or rear of the vehicle and support it securely on jackstands. Remove the front or rear wheels. Position a drain pan under the
Brake Caliper assembly and thoroughly clean it with brake system cleaner. Always wash the brakes with brake cleaner before disassembling anything. Inspect the
Brake Disc carefully. If machining is necessary, follow the information to remove the disc, at which time the calipers and pads can be removed as well. Push the piston(s) completely back into the bore(s) using a C-clamp. This is necessary to provide space for the new brake pads. When a piston is depressed to the bottom of the caliper bore, the fluid in the master cylinder will rise. Make sure that it doesn't overflow by removing more fluid as necessary. For front pad replacement, work on one brake assembly at a time using the assembled brake for reference if necessary. For rear pad replacement, follow illustrations for the actual pad replacement procedure. Work on one brake assembly at a time using the assembled brake for reference if necessary. When reinstalling the caliper, be sure to tighten the mounting bolt to the torque. After the job has been completed, perform the following: Slowly depress the brake pedal about two-thirds of its travel a few times until the pedal is firm. This will bring the pads into contact with the brake disc. Install the wheels and lug nuts. Lower the vehicle to the ground and tighten the lug nuts to the torque. Check the level of the brake fluid, adding some if necessary. In an isolated area, drive the vehicle and make a few hard stops to seat the pads to the disc. Allow the brakes to cool by driving the vehicle at least one minute in between stops. Continue making stops until the brakes feel responsive and normal. Remember to cool the brakes in between stops. Finally, check the operation of the brakes carefully before placing the vehicle into normal service.