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Home >> Subaru >> 2020 >> WRX Base >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Power Steering System (Service Information) >> Electric Power Steering Gearbox >> Installation

Electric Power Steering Gearbox: Installation

CAUTION: Install the under cover - front so that the front end of the under cover (b) comes inside the bumper face - front (a).
G10269429Courtesy of SUBARU OF AMERICA, INC.
  1. Insert the steering gearbox assembly into crossmember, being careful not to damage the boot of the steering gearbox assembly.
  2. Install the steering gearbox assembly to the crossmember by tightening the bolts through the stiffener (a) to the specified torque.
    CAUTION: Since the bushing mounting bolt is applied with lubricant, always use a new bolt.

    Tightening torque: 

    60 N.m (6.1 kgf-m, 44.3 ft-lb)

    G08316074Courtesy of SUBARU OF AMERICA, INC.
  3. Install the universal joint assembly - steering. Refer to POWER ASSISTED SYSTEM (POWER STEERING)>UNIVERSAL JOINT>INSTALLATION .
    CAUTION: Tighten the bolts of the universal joint assembly - steering in the order of steering gearbox side and column shaft side.
  4. Install the support plate - front crossmember (a).

    Tightening torque: 

    Support plate - front crossmember: 60 N.m (6.1 kgf-m, 44.3 ft-lb)

    Front support: 100 N.m (10.2 kgf-m, 73.8 ft-lb)

    G08316073Courtesy of SUBARU OF AMERICA, INC.
  5. Install the front crossmember - support.

    Tightening torque: 

    60 N.m (6.1 kgf-m, 44.3 ft-lb)

  6. Install the center exhaust pipe (rear). Refer to EXHAUST(W/O STI)>CENTER EXHAUST PIPE>INSTALLATION .
  7. Install the under cover - front. Refer to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>INSTALLATION .
  8. Connect the tie-rod ends and knuckle arm.
    1. Connect the tie-rod end (a) to the housing assembly - front axle.
    2. Tighten the castle nuts (b) to the specified torque.
      CAUTION: During connection, do not hit the cap at bottom of tie-rod end with a hammer.

      Castle nut tightening torque: 

      27 N.m (2.8 kgf-m, 19.9 ft-lb)

    3. Tighten within the range of 60° so that the cotter pin hole and cut-out portion of the castle nut (b) are aligned.
    4. Insert a new cotter pin (c), and bend the tip of the pin to fix it.
      G08316077Courtesy of SUBARU OF AMERICA, INC.
  9. Install the stabilizer link.

    Tightening torque: 

    60 N.m (6.1 kgf-m, 44.3 ft-lb)

  10. Install the front wheels.
  11. Lower the vehicle.
  12. Tighten the wheel nuts to the specified torque.

    Tightening torque: 

    120 N.m (12.2 kgf-m, 88.5 ft-lb)

  13. Connect the steering gearbox connector and harness clamp.
  14. Connect the ground terminal to the battery sensor. Refer to NOTE>NOTE>BATTERY .
  15. After adjusting toe-in and steering angle, tighten the lock nut on tie-rod end.
    CAUTION: When the wheel alignment has been adjusted, perform the following adjustment.

    Tightening torque: 

    85 N.m (8.7 kgf-m, 62.7 ft-lb)

    NOTE: When adjusting toe-in, hold the boot - steering gearbox as shown to prevent it from being rotated or twisted. If it becomes twisted, straighten it.
    G08316078Courtesy of SUBARU OF AMERICA, INC.