Rear Wheel Hub Assembly Removal and Installation (Rear Drum Brake Model)
Rear Wheel Hub Assembly Removal and Installation (Rear Drum Brake Model)CAUTION: Do not allow brake fluid to get on painted surfaces. Painted surface will be damaged.
Removal
1. Hoist vehicle and remove rear wheel.
2. Pull up parking brake lever.
Uncaulk rear drive shaft nut (1) and then remove rear drive shaft nut (1) (4WD model).
3. Remove brake drum and rear brake shoe.
4. Disconnect brake pipe flare nut (1) from wheel cylinder (3) and put bleeder plug cap (4) onto pipe (2) to prevent fluid from spilling.
5. Disconnect wheel speed sensor (1).
6. Remove brake back plate (2) and rear wheel hub from rear axle.
7. Remove wheel stud bolts (1) with copper hammer or hydraulic press.
CAUTION: Never remove bolt unless replacement is necessary.
Be sure to use a new bolt for replacement.
Installation
1. Insert wheel stud bolt (1) in hub hole. Rotate wheel stud bolt slowly to assure that serrations are aligned with those made by original bolt.
2. Install brake back plate, rear wheel hub and new rear wheel hub bolts and then tighten rear wheel hub bolts to specified torque.
CAUTION: Use new rear wheel hub bolts (3).
Tightening torque
Rear wheel hub bolt a: 73 Nm (7.3 kgf-m, 53.0 ft. lbs.)
3. Connect wheel speed sensor (1) and tighten wheel speed sensor bolt (2WD model) to specified torque.
Tightening torque
Wheel speed sensor bolt b: 11 Nm (1.1 kgf-m, 8.0 ft. lbs.)
4. Connect brake pipe (1) to wheel cylinder and tighten brake pipe flare nut to specified torque.
Tightening torque
Brake pipe flare nut a: 16 Nm (1.6 kgf-m, 11.5 ft. lbs.)
5. Install brake drum.
6. Pull up parking brake lever.
Install new rear drive shaft nut (1) to specified torque, and then caulk drive shaft nut (1) (4WD model).
CAUTION:
- Never reuse rear drive shaft nut.
- Be careful not to damage the rear drive shaft nut while caulking it. If it is damaged, replace it with new one.
Tightening torque
Drive shaft nut b: 175 Nm (17.5 kgf-m, 127.0 ft. lbs.)
7. Fill reservoir with brake fluid and bleed brake system. For bleeding operation, see Air Bleeding of Brake System.
8. Install wheel and tighten wheel nuts to specified torque.
Tightening torque
Wheel nut: 85 Nm (8.5 kgf-m, 61.5 ft. lbs.)
9. Upon completion of all jobs, depress brake pedal with about 300 N (30 kgf, 66 lbs) load at least 3 times so as to obtain proper drum-to-shoe clearance.
Adjust parking brake cable. For adjustment, see Parking Brake Inspection and Adjustment.
10. Check to ensure that brake drum is free from dragging and proper braking is obtained.
11. Perform brake test (foot brake and parking brake).
12. Check each installed part for fluid leakage.