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Front Wheel Alignment: Adjustment

  1. INSPECT TIRES  (See INSPECTION )
  2. MEASURE VEHICLE HEIGHT (w/o Air Suspension) 
    Fig 1: Identifying Vehicle Height
    G04949314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Bounce the vehicle at the corners up and down to stabilize the suspension and inspect the vehicle height.

      Standard vehicle height 

      VEHICLE HEIGHT CHART

      - Front (A - B) Rear (D - C)
      Standard Body 18 in. Wheel 91 mm (3.583 in.) 76 mm (2.992 in.)
      Standard Body 19 in. Wheel 91 mm (3.583 in.) 76 mm (2.992 in.)
      Long Body 18 In. Wheel 91 mm (3.583 in.) 76 mm (2.992 in.)
      Long Body 19 in. Wheel 91 mm (3.583 in.) 76 mm (2.992 in.)

      Measuring points: 

      A: Ground clearance of front wheel center 

      B: Ground clearance of front center position of front No. 2 suspension lower arm assembly front bush installation 

      C: Ground clearance of pit center of the attachment rear suspension arm 

      D: Ground clearance of rear wheel center 

      NOTE: Before inspecting the wheel alignment, adjust the vehicle height to the specified value.

      If the vehicle height is not as specified, adjust the height by pressing down on the vehicle several times to stabilize the suspension.

  3. MEASURE VEHICLE HEIGHT (w/ Air Suspension) 
    Fig 2: Identifying Vehicle Height
    G04949315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Bounce the vehicle at the corners up and down to stabilize the suspension and inspect the vehicle height.

      Standard vehicle height 

      VEHICLE HEIGHT CHART

      - Front (A - B) Rear (D - C)
      18 in. Wheel 98 mm (3.858 In.) 93 mm (3.661 in.)
      19 in. Wheel 98 mm (3.858 In.) 93 mm (3.661 in.)

      Measuring points: 

      A: Ground clearance of front wheel center 

      B: Ground clearance of front center position of front No. 2 suspension lower arm assembly front bush installation 

      C: Ground clearance of pit center of the attachment rear suspension arm 

      D: Ground clearance of rear wheel center 

      NOTE: Before inspecting the wheel alignment, adjust the vehicle height to the specified value.

      If the vehicle height is not as specified, adjust the height by pressing down on the vehicle several times to stabilize the suspension.

  4. INSPECT TOE-IN 
    1. Bounce the vehicle up and down at the corners to stabilize the suspension and inspect toe-in.
      Fig 3: Identifying Toe-In
      G04949316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Toe-in (w/ Air Suspension) 

      TOE-IN SPECIFICATIONS

      Toe-In (total) B - A: 0 +1-2 mm (0 +/-0.08 in.)

      Toe-in (w/o Air Suspension) 

      TOE-IN SPECIFICATIONS

      Toe-In (total) B - A: 1 +/-2 mm (0.04 +/-0.08 in.)

      If toe-in is not within the specified range, adjust it at the rack ends.

  5. ADJUST TOE-IN 
    1. Measure the thread lengths of the right and left rack ends.

      Standard: Difference in thread length of 1.5 mm (0.059 in.) or less 

    2. Remove the rack boot set clips.
    3. Loosen the tie rod end lock nuts.
    4. Adjust the rack ends if the difference in thread length between the right and left rack ends is not within the specified range.
      1. Extend the shorter rack end if the measured toe-in deviates toward the outer-side.
      2. Shorten the longer rack end if the measured toe-in deviates toward the inner-side.
    5. Turn the right and left rack ends by an equal amount to adjust toe-in.

      HINT:

      Try to adjust toe-in to the center of the specified range.

    6. Make sure that the lengths of the right and left rack ends are the same.
    7. Tighten the tie rod end lock nuts.

      Torque: 55.9 N*m (571 kgf*cm, 41 ft.*lbf) 

      NOTE: Temporarily tighten the lock nut while holding the hexagonal part of the steering rack end so that the lock nut and the steering rack end do not turn together. Hold the width across flat of the tie rod end and tighten the lock nut.
      Fig 4: Locating Tie Rod End Lock Nuts
      G04949317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Perform the VGRS system calibration (see CALIBRATION ).
    9. Place the boots on the seats and install the clips.

      HINT:

      • Make sure that the boots are not twisted.
      • Make sure that the clips' finger grips are positioned as shown in the illustration.
        Fig 5: Identifying Boot Clamp Angle
        G04949318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSPECT WHEEL ANGLE 
    1. Turn the steering wheel fully to the left and right and measure the turning angle.

      Standard wheel turning angle 

      WHEEL TURNING ANGLE CHART

      - Inside wheel Outside wheel: Reference
      Coil suspension 18 in. 41°45' (41.75°) 35°17' (35.28°)
      Coil suspension 19 in. 40°46' (40.77°) 34°40' (34.67°)
      Air suspension 18 in. 41°37' (41.62°) 35°11' (35.18°)
      Air suspension 19 in. 40°38' (40.63°) 34°34' (34.57°)
      Fig 6: Inspecting Wheel Alignment
      G04949319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the right and left inside wheel angles differ from the specified range, check the right and left rack end lengths.

  7. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION 
    1. Put the front wheels on the center of the alignment tester.
      2. Fig 7: Identifying Gauge And Alignment Tester
      G04949320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the center ornament.
    3. Install the camber-caster-steering axis inclination gauge at the center of the axle hub or drive shaft.
    4. Inspect the camber, caster and steering axis inclination.

      Standard camber inclination (unloaded) 

      CAMBER INCLINATION CHART

      Item Camber Inclination
      Coll suspension (Standard body) Camber Left - right error -0°17' +/-45' (-0.28° +/-0.75°) 30' (0.50°) or less
      Coll suspension (Long body) Camber Left - right error -0°17' +/-45' (-0.28° +/-0.75°) 30' (0.50°) or less
      Air suspension Camber Left - right error -0°26' +/45' (-0.43° +/-0.75°) 30' (0.50°) or less

      Standard caster inclination (unloaded) 

      CASTER INCLINATION CHART

      Item Caster Inclination
      Coll suspension (Standard body) Caster Left - right error 6°37' +/-451 (6.62° +/-0.75°) 45' (0.75°) or less
      Coll suspension (Long body) Caster Left - right error 6°37' +/-45' (6.62° +/-0.75°) 45' (0.75°) or less
      Air suspension Caster Left - right error 7°1' +/-45' (7.02° +/-0.75°) 45' (0.75°) or less

      Standard steering axis inclination (unloaded) 

      STEERING AXIS INCLINATION CHART

      Item Steering axis Inclination
      Coll suspension (Standard body) Steering axis Left - right error 9°7' +/-45' (9.12° +/-0.75°) 30' (0.50°) or less
      Coll suspension (Long body) Steering axis Left - right error 9°7' +/-45' (9.12° +/-0.75°) 30' (0.50°) or less
      Air suspension Steering axis Left - right error 9°18' +/-45' (9.3° +/-0.75°) 30' (0.50°) or less
      NOTE:
      • Inspect while the vehicle is empty.
      • The maximum tolerance of right and left difference for the camber is 30' or less.
      • The maximum tolerance of right and left difference for the caster is 45' or less.
    5. Remove the camber-caster-steering axis inclination gauge and attachment.
    6. Install the center ornament.

      If the caster and steering axis inclination are not within the specified values, after the camber has been correctly adjusted, recheck the suspension parts for damaged and/or worn out parts.

  8. ADJUST CAMBER AND CASTER 
    1. Lift up the vehicle so that there is no load on the tires.
    2. Place a mark (with spray, etc.) over the front right vehicle side attachment area of the crossmember, which is indicated in the illustration.
      3. Fig 8: Locating Front Suspension Crossmember Mark
      G04943178Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Place a mark (with spray, etc.) over the front left vehicle side attachment area of the crossmember.
    4. Loosen areas as necessary so that the front suspension crossmember can move.
    5. Move the front suspension crossmember and adjust the camber and caster.
      Fig 9: Identifying Front Suspension Crossmember
      G04949322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Relative alignment change based on amount of suspension crossmember movement in each direction 

      ALIGNMENT CHANGE BASED ON AMOUNT OF SUSPENSION CROSSMEMBER MOVEMENT

      - Alignment Change Amount Relative Amount of Movement Between Suspension Crossmember and Vehicle Body
      1 Suspension Crossmember Turn Caster Camber Suspension Crossmember Installation Front Side LH Suspension Crossmember Installation Front Side RH
      LH RH LH RH Front to Rear Left to Right Front to Rear Left to Right
      -10' + 3' + 3' - 3' + 1 mm (+ 0.0394 In.) - - -
      1' Caster Camber Suspension Crossmember Installation Front Side LH Suspension Crossmember Installation Front Side RH
      LH RH LH RH Front to Rear Left to Right Front to Rear Left to Right
      + 3' -10' -3' + 3' - - + 1 mm (+ 0.0394 In.) -
      2 Suspension Crossmember Front to Rear Movement Caster Camber Suspension Crossmember Installation Front Side LH Suspension Crossmember Installation Front Side RH
      LH RH LH RH Front to Rear Left to Right Front to Rear Left to Right
      -7.5' -7.5' +/-0' +/-0' + 1 mm (+ 0.0394 in.) - +1 mm (+ 0.0394 In.) -
      2' Caster Camber Suspension Crossmember Installation Front Side LH Suspension Crossmember Installation Front Side RH
      LH RH LH RH Front to Rear Left to Right Front to Rear Left to Right
      + 7.5' + 7.5' +/-0' +/-0' -1 mm (-0.0394 in.) - -1 mm (- 0.0394 In.) -
      3 Suspension Crossmember Left to Right Movement Caster Camber Suspension Crossmember Installation Front Side LH Suspension Crossmember Installation Front Side RH
      LH RH LH RH Front to Rear Left to Right Front to Rear Left to Right
      + 1' -1' + 7' -7' - + 1 mm (+ 0.0394 In.) - +1 mm (0.0394 In.) (+ 0.0394 in.)
      3' Caster Camber Suspension Crossmember Installation Front Side LH Suspension Crossmember Installation Front Side RH
      LH RH LH RH Front to Rear Left to Right Front to Rear Left to Right
      -1' + 1' - 7' + 7' - -1 mm (-0.0394 in.) - -1 mm (- 0.0394 in.)
    6. Tighten the areas loosened previously.
  9. ADJUST CAMBER 
    1. If the front suspension crossmember's left to right camber value is not as specified even though the camber and caster adjustment was performed, replace the No. 1 arm attachment plate inner and No. 2 arm attachment plate inner. Then perform the camber adjustment again.
      Fig 10: Identifying No. 1 Arm Attachment Plate Inner And No. 2 Arm Attachment Plate Inner
      G04949323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard 

      ARM ATTACHMENT PLATE INNER CHART

      - No. 1 Arm Attachment Plate Inner No. 2 Arm Attachment Plate Inner Camber Angle Change Caster Angle Change
      - RH LH RH LH - -
      Arm Attachment Part No. and Distinguishing Color Standard Part 48614-50010 (Yellow) 48617-50010 (Yellow) 48614-50020 (White) 48617-50020 (White) 0 (Standard) 0 (Standard)
      + 2 mm Part 48614-50030 (Pink) 48617-50030 (Pink) 48614-50050 (Green) 48617-50050 (Green) +16.4' + 2.5'

      HINT:

      For +2 mm parts, the upper arm installation hole is further toward the outside of the vehicle compared to standard parts.

  10. INSPECT FRONT SUSPENSION 
    1. Inspect the front suspension member.
      1. Measure the dimension between the center of the installation bolts of the front No. 2 suspension lower arm.

        Standard length: 788 mm (31.0236 in.) 

        If the result is not within the specification, replace the front suspension member. 

        Fig 11: Identifying Dimension Between Center Of Installation Bolts
        G04949324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect the front No. 1 suspension lower arm.
      1. Remove the front No. 1 suspension lower arm (see REMOVAL  ).
      2. Measure the dimension between the center of the front No. 1 suspension lower arm bush and the ball joint stud.

        Standard length: 385.5 mm (15.177 in.) 

        HINT:

        If the dimension of the front suspension lower arm changes 2 mm (0.0787 in.), the camber will change approximately 15' (0.25°).

        Fig 12: Measuring Dimension Between Center Of Front No. 1 Suspension Lower Arm Bush And Ball Joint Stud
        G04949325Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Inspect the front No. 2 suspension lower arm.
      1. Remove the front No. 2 suspension lower arm (see REMOVAL  ).
      2. Measure the dimension between the center of the front suspension lower arm bush and position A.

        Standard length: 315.6 mm (12.425 in.) 

        HINT:

        If the dimension of the front suspension lower arm changes 2 mm (0.0787 in.), the camber will change approximately 15' (0.25°).

        Fig 13: Measuring Dimension Between Center Of Front Suspension Lower Arm Bush And Position A
        G04949326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Inspect the front No. 1 suspension upper arm.
      1. Remove the front No. 1 suspension upper arm (see REMOVAL  ).
      2. Measure the dimension between the center of the front No. 1 suspension upper arm bush and the ball joint stud.

        Standard length: 235.8 mm (9.283 in.) 

        HINT:

        If the dimension of the front suspension upper arm changes 2 mm (0.0787 in.), the camber will change approximately 15' (0.25°).

        Fig 14: Inspecting Front No. 1 Suspension Upper Arm
        G04949327Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Inspect the front No. 2 suspension upper arm.
      1. Remove the front No. 2 suspension upper arm (see REMOVAL  ).
      2. Measure the dimension between the center of the front No. 2 suspension upper arm bush and the ball joint stud.

        Standard length: 224.5 mm (8.839 in.) 

        HINT:

        If the dimension of the front suspension upper arm changes 2 mm (0.0787 in.), the camber will change approximately 15' (0.25°).

        Fig 15: Inspecting Front No. 2 Suspension Upper Arm
        G04949328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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