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Front Arm: Installation

CAUTION: For parts which are not reusable, always use new parts.
  1. Before installation, inspect the following items and replace any faulty part with a new one.
    • Check the arm assembly front for damage or cracks.
    • Check the bushing for abnormal cracks, damage or fatigue.
    • Check the boot on the ball joint for damage.
  2. Using a new flange bolt and a new self-locking nut, temporary install the arm assembly front and the front arm rear plate.
    CAUTION: Be careful not to damage the boot of the ball joint.
  3. Tighten the bolts for front arm rear plate.

    Tightening torque: 

    150 N.m (15.3 kgf-m, 110.6 ft-lb)

    G14601735Courtesy of SUBARU OF AMERICA, INC.
  4. Install the ball stud of arm assembly front to the front axle housing.
    CAUTION:
    • Be careful not to damage the boot of the ball joint.
    • While holding the bolt side, tighten the nut to the specified torque.

    Tightening torque: 

    70 N.m (7.1 kgf-m, 51.6 ft-lb)

    G16538548Courtesy of SUBARU OF AMERICA, INC.
    (a) Bottom surface of front axle housing
    (b) Front axle housing
    (c) Arm ASSY front
  5. Install the crossmember support rear. Ref. to FRONT SUSPENSION>CROSSMEMBER SUPPORT>INSTALLATION .
  6. Disconnect the strut assembly and the front axle housing.
    1. Place an alignment mark (a) on the adjusting bolt and the strut assembly.
    2. Remove the adjusting bolts and flange bolts for the strut assembly.
      CAUTION: Turn and remove the nut while holding the bolt side.
      G14601737Courtesy of SUBARU OF AMERICA, INC.
  7. Install the arm assembly front.
    1. Apply a load to the arm assembly front using a transmission jack.
      G14601738Courtesy of SUBARU OF AMERICA, INC.
    2. Adjust the clearance between the upper surface of crossmember support rear and the lower surface of ball joint connection of the arm assembly front.
      G14601739Courtesy of SUBARU OF AMERICA, INC.
      Model 17-inch model Except for 17-inch model
      Standard (a) 6.97 mm (0.27 in) 11.11 mm (0.44 in)
    3. Tighten the bolts and nuts of the arm assembly front.
      CAUTION: For T1, tighten the bolt to the specified torque while holding the nut side.
      For T2, tighten the bolts to specified torque.

      Tightening torque: 

      T1: 95 N.m (9.7 kgf-m, 70.1 ft-lb)

      T2: 140 N.m (14.3 kgf-m, 103.3 ft-lb)

    Fig 1: Arm Assembly Front Bolts And Nuts With Torque Specification
    G14601740Courtesy of SUBARU OF AMERICA, INC.
  8. Align alignment marks on the adjusting bolt and the strut assembly, and install the strut assembly to the front axle housing.
    CAUTION:
    • While holding the bolt side, tighten the nut to the specified torque.
    • Do not forget to install the adjusting washer.
    NOTE: First, tighten the adjusting bolt (upper side) to the specified torque.

    Tightening torque: 

    155 N.m (15.8 kgf-m, 114.3 ft-lb)

  9. Install the under cover front. Ref. to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>INSTALLATION .
  10. Install the front wheels. Ref. to WHEEL AND TIRE SYSTEM>TIRE AND WHEEL>INSTALLATION .
  11. Inspect the wheel alignment and adjust if necessary.
  12. Perform "VDC sensor midpoint setting mode". Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U)>ADJUSTMENT>VDC SENSOR MIDPOINT SETTING MODE .
  13. Perform the lane keep assist learning value clear. Ref. to EYESIGHT (DIAGNOSTICS)>WORK SUPPORT .
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