LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2005 >> GS 430 >> Repair and Diagnosis >> Suspension >> Wheel Alignment >> Suspension And Axle >> Front Wheel Alignment >> Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Front Wheel Alignment: Inspection

  1. MEASURE VEHICLE HEIGHT 
    Fig 1: Measuring Vehicle Height
    G02944431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TIRE SIZE REFERENCE

    Tire size Front(1) mm (in.) Rear(2) mm (in.)
    P215/60R16 94V 245 (9.63) 226 (8.90)
    225/55R16 94V 240 (9.45) 221 (8.70)
    235/45ZR17 238 (9.37) 219(8.62)
    (1) Front measuring point Measure from the ground to the center of the lower suspension arm mounting bolt.
    (2) Rear measuring point Measure from the ground to the center of the No.2 lower suspension arm mounting bolt.
    NOTE: Before inspecting the wheel alignment, adjust the vehicle height to the specification.

    If the vehicle height is not within the specification, try to adjust it by pushing down on or lifting the body.

  2. INSTALL CAMBER-CASTER-KINGPIN GAUGE ONTO WHEEL ALIGNMENT TESTER 

    Follow the specific instructions of the equipment manufacturer.

  3. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION 
    CAMBER, CASTER & STEERING INCLINATION REFERENCE

    Camber Left-right error -0°16' +/- 30' (-0.27° +/- 0.5°) 30' (0.5°) or less
    Caster Left-right error 7°33' +/- 30' (7.55° +/- 0.5°) 30' (0.5°) or less
    Steering axis inclination Left-right error 8°52' +/- 30'(8.87° +/- 0.5°) 30' (0.5°) or less

    If the camber is not within the specification, adjust it by adjusting cam.

    Fig 2: Installing Camber-Caster-King Pin Gauge On To Wheel Alignment Tester
    G02944432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT TOE-IN 
    Fig 3: Inspecting Toe-In
    G02944433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TOE-IN REFERENCE

    Toe-in (total) A + B: 0°09' +/- 12'(0.15° +/- 0.2°)
    Toe-in (total) C - D: 1.5 +/- 2 mm (0.06 +/- 0.08 in.)

    If the toe-in is not within the specification, adjust it at the tie rod end.

  5. ADJUST CAMBER 

    HINT:

    • After adjusting the camber, inspect the caster and toe-in.
    • Try adjusting the camber to the center value of the specification.
    1. Loosen the camber adjusting cam nut of the lower suspension arm.
    2. Turn the camber adjusting cam of the lower suspension arm and adjust camber.

      HINT:

      Camber changes about 5' (0.08°) with each graduation of the adjusting cam.

    3. Torque the camber adjusting cam nut of lower suspension arm.

      Torque: 172 N.m (1,755 kgf.cm, 127 ft.lbf) 

      Fig 4: Loosening Camber Adjusting Cam Nut
      G02944434Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. ADJUST TOE-IN 
    1. Remove the boot clips.
    2. Loosen the tie rod end lock nuts.
    3. Turn the left and right rack ends an equal amount to adjust the toe-in.

      HINT:

      • Try to adjust the toe-in to the center value.
      • Make sure that the lengths of the left and right rack ends are same.

        Rack end length difference: 1.5 mm (0.059 in.) or less 

    4. Torque the tie rod end lock nuts.

      Torque: 56 N.m (570 kgf.cm, 41 ft.lbf) 

    5. Place the boot on the seat and clamp it.

      HINT:

      Make sure that the boots are not twisted.

    6. Perform the zero point calibration of yaw rate and deceleration sensor.
      Fig 5: Loosening Tie Rod End Lock Nuts
      G02944435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSPECT WHEEL ANGLE 

    Turn the steering wheel fully, and measure the turning angle.

    Fig 6: Inspecting Wheel Angle
    G02944436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WHEEL TURNING ANGLE

    Inside wheel 38°51'(37°51' - 40°51')
    Inside wheel 38.85° (36.85° - 39.85°)
    Outside wheel (Reference) 32°08'
    Outside wheel (Reference) 32.13°

    If the wheel angles differ from the standard of the specification, inspect the toe-in.

scientia non olet · About LEMON Manuals