Front

Removal

1. Remove brake fluid in the master cylinder reservoir until the reservoir is half full.

2. WARNING: The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the rear jack storage area. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations.

Raise and support the vehicle.
3. Remove the wheel and tire assembly.





4. CAUTION: Install a new pad if worn to or past the specified thickness above the metal backing plate or rivets. Install new pads in complete axle sets.

Inspect the pads for wear or contamination.





5. Remove the lower caliper bolt.





6. Rotate the disc brake caliper upward.





7. Remove the pads and the stainless slippers.
1 Remove the pads.
2 Remove the stainless slippers.





8. On 4x2 vehicles, measure the brake disc and hub for minimum thickness.
^ Machine the brake disc first then, install a new brake disc and hub if not within specification.





9. On 4x4 vehicles, measure the brake disc for minimum thickness and for lateral runout.
^ Machine the brake disc first then, install a new brake disc if not within specification.





10. Inspect the disc brake caliper for leaks.
^ If leaks are found, disassembly is required.

Installation





1. NOTE: Use a suitable suction device to remove brake fluid from the master cylinder.

NOTE: Clean the anchor plate and stainless slipper surfaces.

NOTE: The inboard pad has a wear indicator tab.

Install the stainless slippers and the pads.
1 Install the stainless slippers.
2 Install the pads.





2. Inspect the anti-rattle spring, install a new spring if worn or damaged.





3. NOTE: If installing new pads, the caliper pistons must be compressed using a C-clamp and a wooden block. Lower the brake fluid level in the master cylinder if required.

Rotate the disc brake caliper downward.





4. Install the caliper bolt.

5. NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch.

Install the wheel and tire assembly.
6. Inspect the brake system operation.