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Home >> Isuzu >> 2002 >> Axiom Base, RWD >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> Drive Shaft System >> Front Hub And Disc (4WD Model) >> Disassembled View >> Disassembly

Disassembled View: Disassembly

  1. Move the transfer case lever to the 2WD position.
  2. Raise the vehicle with a jack. Support the frame with chassis stands.
  3. Remove the brake caliper from the bracket. Secure the caliper with a wire so that it does not interfere with the work process. Refer to FRONT DISC BRAKE CALIPER .
  4. Remove the disc rotor. Apply penetrating oil to the bearing and disc rotor contact surfaces if the surfaces are stuck together because of rust.
  5. Inspect the hub unit bearing. Refer to INSPECTION  below.
  6. Use a dial gauge to measure the bearing axial rattle.

    Bearing axial rattle:  0.05 mm Max

    Fig 1: Measuring Bearing Axial Rattle
    G02804795Courtesy of ISUZU MOTOR CO.

    If abnormal conditions are discovered during inspection, go to Step  7. If there are no abnormal conditions, reassemble the front disc rotor and caliper.

    NOTE: Hub, wheel bearing and spindle is integrated to the hub unit bearing so it must not be disassembled. If it has abnormal rattle or noise, replace the hub unit bearing.
  7. Loosen the caulking around the front drive shaft nuts.
  8. Remove the nuts and discard them (they cannot be reused).
  9. Remove the 4 bolts fixing the hub unit bearing to the knuckle. Apply penetrating oil to the bearing and knuckle contact surfaces if the surfaces are stuck together because of rust.
  10. Temporarily install long bolts to 2 of the fixing bolt holes (the bolts must have the same diameter and thread width).
    Fig 2: Installing Long Bolts To Fixing Bolt Holes
    G02804796Courtesy of ISUZU MOTOR CO.
  11. Strike the long bolts with a hammer to loosen and remove the hub unit bearing from the knuckle.
    • Take care not to strike the front drive shaft.
    • Take care not to drop the bearing.
  12. Remove the ABS rotor sensor from the bearing.
  13. If necessary, replace the wheel pin in the following manner.
    • Place hub on a suitable work surface and remove wheel studs, as required, by using a hammer.
Fig 3: Removing Wheel Studs Using Hammer
G02804792Courtesy of ISUZU MOTOR CO.