Toyota 4Runner 2001-06

Axle Shaft, Bearing & Seal

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Removal & Installation





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Fig. Remove the four axle mounting bolts



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Fig. Pull out the backing plate and axle



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Fig. The rear hub and axle assembly are heavy. Be sure you have a firm grasp on the axle when removing it



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Fig. View of the axle shaft and brake backing plate removed from the vehicle

  1. Loosen the lug nuts on the rear wheel.
  2.  
  3. Raise and support the vehicle, then remove the wheel.
  4.  
  5. Remove the brake drum.
  6.  
  7. Check the bearing backlash and axle shaft deviation as follows:


    1. Using a dial indicator, check that the backlash in the bearing shaft direction. The maximum is 0.027 in. (0.7mm).
    2.  
    3. If the backlash exceeds the maximum, replace the bearing.
    4.  
    5. Using a dial indicator, check the deviation at the surface of the axle shaft outside the hub bolt. Maximum is 0.0039 in. (0.1mm).
    6.  
    7. If the deviation exceeds the maximum, replace the axle shaft.
    8.  

  8.  
  9. On models with ABS, remove the ABS speed sensor from the axle housing.
  10.  
  11. Remove the axle shaft assembly by unfastening the four nuts from the backing plate. Pull out the shaft assembly from the rear axle housing.
  12.  
  13. Remove the O-ring from the axle housing.
  14.  
  15. On ABS models, remove the bearing and retainer (differential side) and ABS speed sensor rotor.
  16.  
  17. Remove the snap ring from the axle shaft.
  18.  
  19. Remove the rear axle shaft from the backing plate. Inspect the axle shaft run-out. Shaft run-out should be 0.079 in. (2.0mm) and the flange run-out should be 0.004 in. (0.1mm).
  20.  
  21. Remove the outer seal. Using a suitable bearing removal tool, separate the bearing from the axle shaft.
  22.  

To install:

  1. Install a new bearing to the axle shaft.
  2.  
  3. Install a new outer seal onto the axle shaft.
  4.  
  5. Replace the inner side oil seal.
  6.  
  7. Apply multi-purpose grease to the oil seal lip. Press the axle shaft into the backing plate. Install a new snap ring.
  8.  
  9. On ABS models, install the ABS speed sensor rotor and bearing retainer on the differential side.
  10.  
  11. Attach a new O-ring on the axle housing.
  12.  
  13. Install the axle assembly attach the four mounting bolts to the backing plate. Tighten to 48 ft. lbs. (66 Nm).
  14.  
  15. Install the rear brake assembly.
  16.  
  17. On vehicles with ABS, install the sensor to the rear housing assembly; tighten to 71 inch lbs. (8 Nm).
  18.  
  19. Install the rear drum and wheel.
  20.  
  21. Bleed the brake system and check for leaks.
  22.  
  23. Lower the vehicle and test drive.

    Click image to see an enlarged view

    Fig. Exploded view of the rear axle shaft and components

  24.  

  1. Raise and safely support the vehicle.
  2.  
  3. Disconnect the wheel speed sensor.
  4.  
  5. Remove the rear disc if equipped with disc brakes, or drum brake component if equipped with drum brakes.
  6.  
  7. Remove the axle shaft assembly by unfastening the four nuts from the backing plate. Pull out the shaft assembly from the rear axle housing.
  8.  
  9. Remove the rear axle shaft oil seal using Special Tool 09308-00010 or equivalent seal remover.
  10.  
  11. Remove the snap ring from the axle shaft.
  12.  
  13. Remove the rear axle shaft from the backing plate.
  14.  
  15. Remove the outer seal. Using a suitable bearing removal tool, separate the bearing from the axle shaft.
  16.  
  17. Inspect the axle shaft run-out. Shaft run-out should be 0.059 in. (1.5mm) and the flange run-out should be 0.002 in. (0.05mm).
  18.  

To install:

  1. Install a new bearing to the axle shaft.
  2.  
  3. Install a new outer seal onto the axle shaft.
  4.  
  5. Replace the inner side oil seal.
  6.  
  7. Apply multi-purpose grease to the oil seal lip. Press the axle shaft into the backing plate. Install a new snap ring.
  8.  
  9. On ABS models, install the ABS speed sensor rotor and bearing retainer on the differential side.
  10.  
  11. Attach a new O-ring on the axle housing.
  12.  
  13. Install the axle assembly and attach the four mounting bolts to the backing plate. Tighten to 91 ft. lbs. (123 Nm).
  14.  
  15. On vehicles with ABS, install the sensor to the rear housing assembly; tighten to 73 inch lbs. (8.x Nm).
  16.  
  17. Install the rear disc if equipped with disc brakes or rear drum components if equipped with drum brakes.
  18.  
  19. Bleed the brake system and check for leaks.
  20.  
  21. Lower the vehicle and test drive.
  22.  

 
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