How to Replace A Front Wheel Bearing Hub Assembly

Written by eli laurens
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Most modern autos have started using sealed wheel bearings in the hubs to prolong the bearing lifespan and make replacement simpler. The hub contains the wheel bearings and attaches to the axle spindle in one unit. The average backyard mechanic can replace a wheel bearing hub assembly in about an hour.

Skill level:
Moderately Challenging

Things you need

  • Floor jack
  • Jack stand
  • Socket set
  • Screwdrivers
  • Lug wrench

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  1. 1

    Lift the vehicle at the correct wheel by placing the jack head onto a frame rail and pumping the lever until the wheel is in the air. Place a jack stand at the same location on the frame rail for extra support.

  2. 2

    Unscrew the lug nuts and pull the wheel off. Set it aside.

  3. 3

    Remove the caliper by unplugging it from the wiring harness at the adaptor plug and unscrewing the twin rear mount bolts. The caliper will then slide off of the rotor. Set the caliper on the control arm, or support it with ties, but do not allow it to dangle by the brake line.

  4. 4

    Remove the rotor by turning the centre spindle nut counterclockwise, then pulling the rotor free. Some models will have attached, one-piece rotor/hub assemblies, but most do not. Set the rotor aside.

  5. 5

    Unscrew the four hub mount bolts directly behind the rotor. The assembly will slide off of the axle.

  6. 6

    Replace the hub assembly by positioning it onto the axle and tightening the four mount bolts. Replace the rotor, if applicable, by pressing it to the hub and turning the spindle nut clockwise.

  7. 7

    Replace the caliper by sliding it over the rotor, then securing the rear mount bolts. Reattach the wiring harness by plugging the adaptor into the caliper's socket.

  8. 8

    Replace the wheel by tightening the lug nuts in an alternating pattern. Remove the jack stand and lower the vehicle.

  9. 9

    Repeat the entire process on the opposite hub.

Tips and warnings

  • Replace sealed wheel bearing hub assemblies in pairs.
  • Be careful when working underneath a vehicle.

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