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Home >> Subaru >> 2007 >> Impreza WRX TR >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Drivetrain System) >> Front Hub Unit Bearing >> Installation

Front Hub Unit Bearing: Installation

WARNING: This page is about a different car, the 2006 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Tighten the front hub unit bearing to the housing with four bolts.

    Tightening torque: 

    65 N.m (6.6 kgf-m, 47.9 ft-lb) 

    Fig 1: Installing Front Hub Unit Bearing To Housing
    G03815379Courtesy of SUBARU OF AMERICA, INC.
  2. Install the front drive shaft. < Ref. to INSTALLATION , Front Drive Shaft. >
  3. Tighten the axle nut temporarily.
  4. Install the disc rotor on hub.
  5. Install the disc brake caliper on the housing.

    Tightening torque: 

    78 N.m (8.0 kgf-m, 57.9 ft-lb) 

  6. While depressing the brake pedal, tighten a new axle nut (olive color) to specified torque and lock it securely.

    Tightening torque: 

    220 N.m (22.4 kgf-m, 162 ft-lb) 

    CAUTION:
    • Install the wheel after installation of the axle nut. Failure to follow this rule may damage the wheel bearing.
    • Be sure to tighten the axle nut to specified torque. Do not overtighten it as this may damage wheel bearing.
  7. After tightening the axle nut, lock it securely.
    Fig 2: Locking Axle Nut
    G03815380Courtesy of SUBARU OF AMERICA, INC.
  8. Install the ABS wheel speed sensor on housing.

    Tightening torque: 

    33 N.m (3.4 kgf-m, 24.3 ft-lb) 

  9. Install the wheel and tighten the wheel nuts to specified torque.

    Tightening torque: 

    90 N.m (9.2 kgf-m, 66 ft-lb)