Rear Knuckle/Hub Bearing Unit Replacement
Rear Knuckle/Hub Bearing Unit Replacement
Exploded View - Disc Brake Type
Exploded View - Drum Brake Type
Hub Bearing Unit Replacement - Disc Brake Type
1. Raise the rear of the vehicle, and support it with safety stands in the proper locations. Service and Repair
2. Remove the center cap (A), the wheel nuts (B), and the rear wheel.
3. Remove the brake hose mounting bolt (A) from the bracket.
4. Remove the brake caliper bracket mounting bolts (B), then remove the caliper assembly (C) from the knuckle. To prevent damage to the caliper assembly or the brake hose, use a short piece of wire to hang the caliper assembly from the undercarriage. Do not twist the brake hose excessively.
5. Remove the two washers (A).
NOTE: During installation, make sure the washers are installed between the brake caliper bracket and the knuckle.
6. Remove the rear brake disc. Rear Brake Disc Replacement
7. Remove the hub bearing unit (A) and the O-ring (B).
8. Check the hub bearing unit for damage and cracks.
9. Install the hub bearing unit in the reverse order of removal, and note these items:
- Use a new O-ring on reassembly.
- Before installing the brake disc, clean the mating surfaces of the hub bearing unit and the inside of the brake disc.
- Before installing the wheel, clean the mating surfaces of the brake disc and the inside of the wheel.
10. Check the wheel alignment, and adjust it if necessary. Service and Repair
Hub Bearing Unit Replacement - Drum Brake Type
1. Raise the rear of the vehicle, and support it with safety stands in the proper locations. Service and Repair
2. Remove the center cap (A), the wheel nuts (B), and the rear wheel.
3. Release the parking brake, and remove the rear brake drum. Service and Repair
4. Remove the hub bearing unit (A) and the O-ring (B).
5. Check the hub bearing unit for damage and cracks.
6. Install the hub bearing unit in the reverse order of removal, and note these items:
- Use a new O-ring on reassembly.
- Before installing the brake drum, clean the mating surfaces of the hub bearing unit and the inside of the brake drum.
- Before installing the wheel, clean the mating surfaces of the brake drum and the inside of the wheel.
7. Check the wheel alignment, and adjust it if necessary. Service and Repair
Knuckle Replacement - Disc Brake Type
1. Remove the hub bearing unit.
2. Remove the splash guard (A).
3. Remove the wheel speed sensor (A), and the brake hose mounting bracket (B) from the knuckle (C). Do not disconnect the wheel speed sensor connector.
NOTE:
- Apply multipurpose grease to the mating surfaces on the knuckle and the O-ring during reassembly.
- To prevent O-ring damage, the wheel speed sensor must be installed with the guide pin tool during reassembly.
4. Remove the parking brake cable mounting bolt (D) from the knuckle.
5. Place a floor jack under the trailing arm to support it.
NOTE: Do not place the jack against the plate section of the lower arm. Be careful not to damage any suspension components.
6. Remove the upper arm mounting bolt (A), and disconnect the upper arm (B) from the knuckle.
NOTE: Use the new upper arm mounting bolt during reassembly.
7. Remove the rear knuckle upper bracket (C).
8. Mark the cam positions of the adjusting bolt (A) and the adjusting cam plate (B) with the frame, then remove the self-locking nut (C), the adjusting cam plate, and the adjusting bolt. Discard the self-locking nut.
NOTE: Use a new self-locking nut and a new adjusting bolt during reassembly.
9. Remove the flange bolt (D), and remove the knuckle.
NOTE: Use the new flange bolt during reassembly.
10. Install the knuckle in the reverse order of removal, and note these items:
- First install all of the components, and lightly tighten the bolts and the nuts, then raise the suspension to load it with the vehicle's weight before fully tightening to the specified torque values.
- Align the cam positions of the adjusting bolt and the adjusting cam plate with the marked positions when tightening the self-locking nut.
- Before installing the wheel, clean the mating surfaces of the brake disc and the inside of the wheel.
11. Check the wheel alignment, and adjust it if necessary. Service and Repair
Knuckle Replacement - Drum Brake Type
1. Remove the hub bearing unit.
2. Disconnect the brake line (A) from the wheel cylinder (B). Remove the backing plate (C) with brake shoes assembly from the knuckle.
NOTE:
- Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid gets on the paint, wash it off immediately with water.
- Plug the end of the joint to prevent spilling brake fluid.
3. Remove the wheel speed sensor (A), and the brake hose mounting bracket (B) from the knuckle (C). Do not disconnect the wheel speed sensor connector.
NOTE:
- Apply multipurpose grease to the mating surfaces on the knuckle and the O-ring during reassembly.
- To prevent O-ring damage, the wheel speed sensor must be installed with the guide pin tool during reassembly. Service and Repair
4. Place a floor jack under the trailing arm to support it.
NOTE: Do not place the jack against the plate section of the lower arm. Be careful not to damage any suspension components.
5. Remove the upper arm mounting bolt (A), and disconnect the upper arm (B) from the knuckle.
NOTE: Use the new upper arm mounting bolt during reassembly.
6. Remove the rear knuckle upper bracket (C).
7. Mark the cam positions of the adjusting bolt (A) and the adjusting cam plate (B) with the frame, then remove the self-locking nut (C), the adjusting cam plate, and the adjusting bolt. Discard the self-locking nut.
NOTE: Use a new self-locking nut and a new adjusting bolt during reassembly.
8. Remove the flange bolt (D), and remove the knuckle.
NOTE: Use the new flange bolt during reassembly.
9. Install the knuckle in the reverse order of removal, and note these items:
- First install all of the components, and lightly tighten the bolts and the nuts, then raise the suspension to load it with the vehicle's weight before fully tightening to the specified torque values.
- Align the cam positions of the adjusting bolt and the adjusting cam plate with the marked positions when tightening the self-locking nut.
- Fill the master cylinder reservoir to the MAX (upper) level line, and bleed the normal brake system (except the servo unit and power unit). Service and Repair Check for a leak at the brake hose/line joint, and retighten it if necessary.
- Before installing the wheel, clean the mating surfaces of the brake drum and the inside of the wheel.
10. Check the wheel alignment, and adjust it if necessary. Service and Repair
