Rear
WARNING: ALTHOUGH FACTORY INSTALLED BRAKE LINING USED ON THE VIPER IS MADE FROM ASBESTOS FREE MATERIALS, SOME AFTERMARKET BRAKE LINING MAY CONTAIN ASBESTOS. THIS SHOULD BE TAKEN INTO ACCOUNT WHEN SERVICING A VEHICLE'S BRAKE SYSTEM. IT IS POSSIBLE THAT AFTERMARKET BRAKE LININGS MAY HAVE BEEN INSTALLED ON THE VEHICLE AT SOME TIME. ALWAYS WEAR A RESPIRATOR WHEN CLEANING BRAKE COMPONENTS AS ASBESTOS CAN CAUSE SERIOUS BODILY HARM SUCH AS ASBESTOSIS AND OR CANCER. NEVER CLEAN BRAKE COMPONENTS BY USING COMPRESSED AIR, USE ONLY A VACUUM CLEANER SPECIFICALLY DESIGNED FOR THE REMOVAL OF BRAKE DUST. IF A VACUUM CLEANER IS NOT AVAILABLE, CLEAN BRAKE PARTS USING ONLY WATER DAMPENED SHOP TOWELS. DO NOT CREATE BRAKE LINING DUST BY SANDING BRAKE LININGS WHEN SERVICING A VEHICLE. DISPOSE OF ALL DUST AND DIRT SUSPECTED OF CONTAINING ASBESTOS FIBERS USING ONLY SEALED AIRTIGHT BAGS OR CONTAINERS. FOLLOW ALL RECOMMENDED SAFETY PRACTICES PRESCRIBED BY THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) AND THE ENVIRONMENTAL PROTECTION AGENCY (EPA), FOR HANDLING AND DISPOSAL OF PRODUCTS CONTAINING ASBESTOS.NOTE: Before proceeding with this procedure, review all Service Warnings And Cautions Under Brakes, Service Procedures.
REMOVAL
1. Raise vehicle. See Hoisting in Maintenance, for the required lifting procedure.
2. Remove the tire and wheel assembly from the vehicle.
3. Disconnect the brake hose at the calipe. Retain the brake hose fitting Banjo Bolt but discard the 2 copper seal washers. New copper seal washers must be used when brake hose is installed on the caliper.
4. Unseat the park brake operating lever return spring at the caliper.
5. Remove the park brake operating lever attaching bolt from the caliper. Then using a flat blade screw driver pry the park brake operating lever off the drive disc spline.
6. Remove park brake operating lever return spring from the caliper assembly.
7. Remove park brake operating lever from the park brake cable.
8. Remove the bolts from upper and lower slide pins attaching the caliper to the knuckle. Remove the disc brake caliper from the knuckle.
WARNING: HOLD ANTI-RATTLE SPRING IN PLACE WHILE REMOVING BRAKE SHOE RETAINING PIN FROM CALIPER. IF ANTI-RATTLE SPRING IS NOT HELD IN PLACE DURING REMOVAL OF RETAINING PIN FROM CALIPER, ANTI-RATTLE SPRING MAY FLY OFF CALIPER CAUSING INJURY.
9. Remove brake shoe assembly retaining pin, then remove the brake shoes and anti-rattle spring from the caliper. See Brake Pad, Service and Repair, Removal and installation, Disc Brake Shoes (Rear) for the procedure.
INSTALLATION
WARNING: HOLD ANTI-RATTLE SPRING IN PLACE WHILE INSTALLING BRAKE PAD RETAINING PIN INTO CALIPER. IF ANTI-RATTLE SPRING IS NOT HELD IN PLACE DURING INSTALLATION OF RETAINING PIN, ANTI-RATTLE SPRING MAY FLY OFF CALIPER CAUSING INJURY.
1. Install the original or replacement brake shoes in the new caliper assembl. See Brake Pad, Service and Reair, Removal and Installation, Disc Brake Shoes (Rear) for the procedure.
2. Position the replacement caliper assembly over the rotor and align with caliper mounting bosses on knuckle assembly
3. Lubricate the caliper slide pins and bushings with silicone lubricant.
4. Align the lower caliper slide pin bushing with lower caliper mounting hole in knuckle. Install the caliper to knuckle slide pin bolt, do not torque at this time only finger tighten.
5. Align upper caliper assembly slide pin bushing with upper caliper assembly mounting hole in knuckle. Install upper caliper assembly to steering knuckle slide pin bolt. Tighten the caliper upper slide pin bolt to a torque of 32 Nm (24 ft. lbs.), and the caliper lower slide pin bolt to a torque of 51 Nm (38 ft. lbs.).
6. Position the park brake operating lever return spring on the caliper with the correct end against the caliper.
7. Install park brake operating lever on the parking brake cable.
8. Pull the park brake cable rearward, Then install the park brake operating lever on the caliper drive disc spline. Install the operating lever to drive disc spline attaching bolt and tighten.
9. Connect the park brake operating lever return spring, to the operating lever first. Then hook the spring onto the caliper with a long screwdriver.
10. Position 2 new copper seal washers on the brake hose fitting and connect the fitting to the caliper. Tighten the Banjo bolt to a torque of 31 Nm (23 ft. lbs.).
11. Bleed the rear brake calipers. See Brake Bleeding, Service and Repair, Service Procedures, Base Brake Bleeding for the bleeding procedure.
12. Install the wheel and tire assemblies. Tighten the wheel mounting stud nuts in proper sequence until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 122 Nm (90 ft. lbs.).
13. Lower vehicle.
14. Apply the brakes several times to seat the brake shoes and equalize parking brake adjustment.
NOTE: Before vehicle is moved after any brake service work, be sure to obtain a firm brake pedal.
15. Road test the vehicle and make several stops to wear off any foreign material on the brakes and to seat the brake shoe linings. See Brake Burnishing Procedure under Brake Pad, Service and Repair, Service Procedures for the correct procedure if NEW brake shoe assemblies were installed.