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Home >> Subaru >> 2007 >> Impreza WRX STi >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Drivetrain System) >> Front Axle >> Installation

Front Axle: 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. Temporarily tighten the front axle to front strut.
  2. Insert the front drive shaft into front axle.
  3. Temporarily tighten the axle nut.
  4. Install the transverse link ball joint to housing.

    Tightening torque: 

    50 N.m (5.1 kgf-m, 37 ft-lb) 

  5. While aligning the alignment mark on the camber adjusting bolt head, tighten the housing and strut using a new self-locking nut.

    Tightening torque: 

    175 N.m (17.8 kgf-m, 129 ft-lb) 

  6. Connect the tie-rod end ball joint to the knuckle arm with a castle nut.

    Tightening torque: 

    27.0 N.m (2.75 kgf-m, 19.9 ft-lb) 

    CAUTION: When connecting, do not hit the cap at bottom of tie-rod with hammer.
  7. Tighten the castle nut to specified torque and tighten further within 60° until the pin hole is aligned with the slot in nut. Bend the cotter pin to lock.
    Fig 1: Connecting Tie-Rod End Ball Joint To Knuckle Arm With Castle Nut
    G03815355Courtesy of SUBARU OF AMERICA, INC.
  8. Install the disc rotor on hub.
  9. Install the disc brake caliper on housing.

    Tightening torque: 

    Except STi model 

    80 N.m (8.2 kgf-m, 59 ft-lb) 

    STi model 

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

  10. Connect the stabilizer link.

    Tightening torque: 

    Except STi model 

    30 N.m (3.1 kgf-m, 22 ft-lb) 

    STi model 

    45 N.m (4.6 kgf-m, 33 ft-lb) 

    CAUTION: Use a new self-locking nut.
  11. Using the ST1 and ST2, pull the front drive shaft into place.

    ST1 922431000 AXLE SHAFT INSTALLER

    ST2 927390000 ADAPTER

    Fig 2: Pulling Front Drive Shaft Into Place Using Special Tools
    G03815356Courtesy of SUBARU OF AMERICA, INC.
  12. While depressing the brake pedal, tighten a new axle nut to specified torque and lock it securely

    Tightening torque: 

    220 N.m (22.4 kgf-m, 162 ft-lb) 

    CAUTION: Be sure to tighten the axle nut to specified torque. Do not overtighten it as this may damage the wheel bearing.
  13. After tightening the axle nut, lock it securely.
    Fig 3: Locking Axle Nut
    G03815357Courtesy of SUBARU OF AMERICA, INC.
  14. Install the ABS wheel speed sensor on housing.

    Tightening torque: 

    33 N.m (3.4 kgf-m, 24.3 ft-lb) 

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

Tightening torque: 

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