Backing Plate: Service and Repair
REMOVE1. Raise vehicle on jackstands or centered on a hoist.
2. Remove rear tire and wheel assembly from vehicle.
3. Remove the dust cap from the rear hub/ bearing.
4. Remove the retaining nut holding the rear hub/bearing to the spindle. Remove the hub/ bearing from the spindle.
5. Remove the rear brake shoes from the brake support plate.
6. Disconnect the rear brake flex hose tube from the wheel cylinder.
7. Remove park brake actuator lever from the park brake cable.
8. Position a 1/2 wrench over the retainer fingers on the end of the parking brake cable. Compress cable housing retaining fingers and start cable housing out of support plate. Remove wrench when retainer is free from the park brake cable mounting hole in the rear brake support plate. Alternate method is to use a aircraft type hose clamp over cable housing end fitting compressing the three fingers.
9. Remove the 4 brake support plate to knuckle attaching bolt and washer assemblies. Separate brake support plate from rear suspension knuckle.
INSTALL
1. Install brake support plate and gasket on rear suspension knuckle casting. Torque support plate to knuckle casting attaching bolts to 75 Nm (55 ft. lbs.).
2. Insert parking brake cable end fitting into brake support plate.
3. Hand start hydraulic brake hose tube fitting to wheel cylinder. Torque tube nut to wheel cylinder fitting to 17 Nm (145 inch lbs.).
4. Attach parking brake cable to the parking brake actuator.
5. Install rear brake shoe assemblies on the brake support plate.
6. Install rear hub and bearing assembly on rear spindle. Install a NEW hub and bearing assembly retaining nut. Torque hub and bearing assembly retaining nut to 217 Nm (160 ft. lbs.). Install dust cap.
7. Adjust brake shoes assemblies so as not to interfere with brake drum installation.
8. Install brake drum. Adjust and bleed service brakes.
9. After brake drums are installed, pump brake pedal several times to do final adjustment of the brake shoe assemblies.
10. Install the wheel and tire assembly. 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 135 Nm (100 ft. lbs.).