Maintenance - Bearing/Hub Replacement (ZJ, XJ, TJ)

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Monday, October 25, 2010

by Bypass


Tools required:

  • Jack and jack stand
  • 13 mm 12-point 1/2" drive socket
  • 1/2" breaker bar
  • 1/2" ratchet
  • Lug wrench
  • 36 mm 6-point socket
  • Needle nose pliers
  • Diagonal cutters
  • 13 mm ratcheting box wrench
  • 13 mm combination wrench
  • 19 mm deep socket
  • 4" 1/2"-drive extension
  • Pound/foot torque wrench
  • Two long wire ties
  • Narrow putty knife
  • Right-angle scribe
  • 5/32" X 2" cotter pin
  • anti-seize compound


Removal:

  1. Remove the axle cotter pin, lock nut, and spring washer. (Diagonal cutter, needle nose pliers)
  2. Break loose the axle nut. (36 mm socket, breaker bar)
  3. Break loose the lug nuts. (Lug wrench)
  4. Jack up the axle and support it on the jack stand.
  5. Remove the tire and wheel.
  6. Remove the brake caliper and hang it from the spring using the wire ties. (13 mm combination wrench, wire ties)
  7. Remove the rotor.
  8. Remove the axle nut and heavy washer. (36 mm socket, ratchet, scribe)
  9. Brake loose the three bolts attaching the hub. (13 mm socket, breaker bar)
  10. Remove the two lower bolts. (13 mm ratcheting box wrench)
  11. Unscrew the upper bolt while pulling on the hub. Leave the upper bolt in place, thus eliminating the possibility of damaging the ABS line.
  12. Remove the hub, putting pressure on the axle to prevent it from coming out.


Installation:

  1. Install the rotor shield if it was previously removed.
  2. Apply anti-seize compound on the three hub bolts.
  3. Place the hub into position, threading the top bolt as you go.
  4. Install the two lower bolts. Torque all three bolts to 75 lb/ft.
  5. Install the heavy washer and axle nut hand tight.
  6. Install the rotor.
  7. Install the brake caliper. Torque the two bolts to 12 lb/ft.
  8. Install the tire and wheel. Hand tighten the lug nuts.
  9. Remove the jack stand and lower the tire to the ground.
  10. Torque the lug nuts to 85 lb/ft.
  11. Torque the axle nut to 175 lb/ft.
  12. Install the spring washer, lock nut, and new cotter pin.