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Home >> Subaru >> 2012 >> Impreza Base, 4D Sedan, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Drivetrain System (WRX-STI)) >> Front Hub Unit Bearing >> Installation

Front Hub Unit Bearing: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Place the disc cover between housing (A) and front hub unit, and tighten the four bolts.
    Fig 1: Locating Housing Bolts
    G07680203Courtesy of SUBARU OF AMERICA, INC.

    Tightening torque: 65 N.m (6.63 kgf-m, 47.9 ft-lb) 

  2. Install the front drive shaft. < Ref. to INSTALLATION , Front Drive Shaft. >
  3. Tighten the axle nut temporarily.
  4. Install the disc rotor to hub.
  5. Install the disc brake caliper on the housing.

    Tightening torque: 

    17-inch type 155 N.m (15.81 kgf-m, 114.3 ft-lb) 

    16-inch type 80 N.m (8.16 kgf-m, 59 ft-lb) 

  6. While depressing the brake pedal, tighten a new axle nut to the specified torque and lock it securely.
    CAUTION: Do not apply weight to the front axle before tightening the axle nut. Doing so may damage the hub bearing.

    Tightening torque: 220 N.m (22.43 kgf-m, 162.3 ft-lb) 

  7. After tightening the axle nut, lock it securely.
    Fig 2: Locking Axle Nut
    G05032598Courtesy of SUBARU OF AMERICA, INC.
  8. Install the wheel.

    Tightening torque: 100 N.m (10.20 kgf-m, 73.8 ft-lb)