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Hub Bearing Unit Replacement

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle (see LIFT AND SUPPORT POINTS ).
  2. Remove the wheel nuts (A) and rear wheel.
    Fig 1: Rear Wheel Nuts With Torque Specifications
    G08065924Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Remove the brake caliper bracket mounting bolts (A), then remove the caliper assembly (B) from the knuckle. To prevent damage to the caliper assembly or brake hose, use a short piece of wire to hang the caliper assembly from the undercarriage. Do not twist the brake hose excessively
    Fig 2: Brake Caliper Assembly With Torque Specifications
    G08065925Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Remove the two washers (A).
    NOTE: During installation, make sure the washers are installed between the brake caliper bracket and the knuckle
    Fig 3: Identifying Brake Caliper Bracket Washers
    G08065926Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Pry up the stake (A) on the spindle nut (B), then remove the nut.
    Fig 4: Spindle Nut With Torque Specifications
    G08065927Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Release the parking brake lever fully, and remove the rear brake disc/drum (see RUNOUT ).
  7. Remove the hub bearing unit (A).
    NOTE: Do not pull the driveshaft end outward. The driveshaft inboard joint may come apart.
    Fig 5: Hub Bearing Unit With Torque Specifications
    G08055005Courtesy of AMERICAN HONDA MOTOR CO., INC.
  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 spindle nut during reassembly.
    • Before installing the spindle nut, apply a small amount of engine oil to the seating surface of the nut. After tightening, use a drift to stake the spindle nut shoulder against the driveshaft.
    • Before installing the brake disc/drum, clean the mating surfaces of the hub bearing unit and the inside of the brake disc/drum.
    • Before installing the wheel, clean the mating surfaces of the brake disc/drum and the inside of the wheel.
  10. Check the wheel alignment, and adjust it if necessary (see WHEEL ALIGNMENT ).

Knuckle Replacement 

  1. Remove the hub bearing unit.
  2. Remove the brake hose bracket mounting bolt (A) from the knuckle.
    Fig 6: Brake Hose Bracket Mounting Bolt, Flange Nuts And Backing Plate With Torque Specifications
    G08055006Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Remove the flange nuts (B), then remove the backing plate (C) with the parking brake shoe assembly.
  4. Remove the wheel speed sensor (A) from the knuckle (B). Do not disconnect the wheel speed sensor connector.
    Fig 7: Wheel Speed Sensor And Knuckle With Torque Specification
    G08055007Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Remove the lock pin (A) from the upper arm ball joint, then remove the castle nut (B).
    NOTE: During installation, install the lock pin as shown after tightening the castle nut.
    Fig 8: Removing Lock Pin With Torque Specifications
    G08055008Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Disconnect the upper arm ball joint from the knuckle using the ball joint thread protector and the ball joint remover (see BALL JOINT REMOVAL ).
    NOTE: Be careful not to damage the ball joint boot when installing the remover.
  7. Remove the self-locking nut (B), the washer (C), and the flange bolt (D), then remove the lower arm A.
    NOTE:
    • During installation, position the paint mark (E) on the lower arm A toward outside of the vehicle.
    • Use a new self-locking nut and a new flange bolt, during reassembly.
    Fig 9: Self-Locking Nut, Washer, Flange Bolt And Lower Arm With Torque Specifications
    G08055009Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Remove the flange nuts (A) from the trailing arm (B).
    NOTE: Use new flange nuts during reassembly.
    Fig 10: Flange Nuts And Trailing Arm With Torque Specifications
    G08055010Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Place a floor jack under lower arm B, and remove the flange bolt (A), then remove the knuckle (C).
    NOTE: Use the new flange bolt during reassembly.
    Fig 11: Removing Knuckle With Torque Specifications
    G08055011Courtesy of AMERICAN HONDA MOTOR CO., INC.
  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 nuts, then raise the suspension to load it with the vehicle's weight before fully tightening to the specified torque.
    • Be careful not to damage the ball joint boot when connecting the knuckle.
    • Before connecting the upper arm ball joint to the knuckle, degrease the threaded section and tapered portion of the ball joint pin, the ball joint connecting hole, the threaded section and mating surfaces of the castle nut.
    • Torque the castle nut to the lower torque specification, then tighten it only far enough to align the slot with the ball joint pin hole. Do not align the castle nut by loosening it.
    • Before installing the wheel, clean the mating surfaces between the brake disc/drum and the inside of the wheel.
  11. Check the wheel alignment, and adjust it if necessary (see WHEEL ALIGNMENT ).
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