Front Wheel Alignment: Adjustment

(See INSPECTION )

1. Bounce the vehicle at the corners up and down to stabilize the suspension and inspect vehicle height.

Fig 1: Measuring Vehicle Height

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Vehicle height 

2WD 

4WD 

Measuring points: 

A: Ground clearance of front wheel center 

B: Ground clearance of front center position of front suspension lower arm assembly front bushing installation bolt head 

C: Ground clearance of rear center position of rear No. 2 suspension arm bushing installation bolt threads 

1. Bounce the vehicle up and down at the corners to stabilize the suspension.
2. Release the parking brake and move the shift lever to the neutral position.
3. Push the vehicle straight ahead approximately 5 m (16.4 ft).(*1)
4. Put tread center marks on the rearmost points of the front wheels and measure the distance between the marks (dimension B).
5. Slowly push the vehicle straight ahead to cause the front wheels to rotate 180° using a front tire pressure valve as a reference point.

   HINT:

   Do not allow the wheels to rotate more than 180°. If the wheels rotate more than 180°, perform the procedure from *1 again.

6. Measure the distance between the tread center marks on the front side of the wheels.

Fig 2: Measuring Distance Between Marks (Dimension B)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

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

Fig 3: Measuring Distance Between Tread Center Marks On Front Side Of Wheels

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Measure the thread lengths of the right and left rack ends.

   Standard: 

   Difference in thread length is 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.
   Fig 4: Measuring Thread Lengths Of Right & Left Rack Ends

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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. Torque the tie rod end lock nuts.

   Torque: 56 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.
8. Place the boots on the seats and install the clips.

HINT:

Make sure that the boots are not twisted.

1. Put tread center marks on the rearmost points of the turning radius gauge.
2. Turn the steering wheel fully left and right and measure the turning angle.

Fig 5: Inspecting Wheel Angle

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Wheel turning angle 

2WD 

4WD 

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

1. Place a front wheel on the center of the turning radius gauge.
2. Remove the center ornament.
3. Install the camber-caster-kingpin gauge at the center of the axle hub or drive shaft.
4. Inspect the camber, caster, and steering axis inclination.
   Fig 6: Inspecting Camber, Caster & Steering Axis Inclination

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Camber, caster, and steering axis inclination 

   2WD 

   CAMBER, CASTER, AND STEERING AXIS INCLINATION SPECIFICATION
   
   

   Suspension Type	Wheel size	Camber angle	Caster angle	Steering axis inclination angle
   Sports suspension	18 in. wheel	-0°36' +- 45' (-0.6° +- 0.75°)	8°04' +- 45' (8.07°+-0.75°)	10°55' +- 45' (10.92°+-0.75°)
   Normal suspension	16 in. wheel	-0°23'+- 45' (-0.38°+-0.75°)	8°07' +- 45' (8.12°+-0.75°)	10°41' +- 45' (10.68°+-0.75°)
   	17 in. wheel		18°11'+- 45' (8.18°+-0.75°)
   	18 in. wheel		8°04'+- 45' (8.07°+-0.75°)

   4WD 

   CAMBER, CASTER, AND STEERING AXIS INCLINATION SPECIFICATION
   
   

   Camber	Caster	Steering axis inclination
   -0°25' +-45' (-0.42°+-0.75°)	4°38'+-45' (4.63°+-0.75°)	11°16'+-45' (11.27°+-0.75°)

   NOTE:

   • Inspect while the vehicle is empty.
   • The maximum tolerance of right and left difference for the camber and caster is 30' (0.5°) or less.
5. Remove the camber-caster-kingpin gauge.
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.

1. Inspect the front suspension member.
   1. Measure the dimension between the center of the installation bolts of the front lower suspension arm.

   Standard: 

   692.5 to 699.5 mm (27.26 to 27.54 in.) 

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

   Fig 7: Measuring Dimension Between Center Of Installation Bolts Of Front Lower Suspension Arm

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect the front lower suspension arm assembly.
   1. Remove the front lower suspension arm assembly. (See Step 8 in REMOVAL  ).
   2. Measure the dimension between the center of the front lower suspension arm assembly bush and the center of position A.

   Standard: 

   362 to 364.6 mm (14.25 to 14.35 in.) 

   HINT:

   If the dimension of the front lower suspension arm assembly changes 2 mm (0.079 in.), the camber will change approximately 15' (0.25°).

   Fig 8: Inspecting Front Lower Suspension Arm Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Inspect the front upper suspension arm assembly.
   1. Remove the front upper suspension arm assembly. (See Step 3 in REMOVAL  ).
   2. Measure the dimension between the center of the front upper suspension arm assembly bush and the center of the ball joint stud.

   Standard: 

   A: 

   241 to 242.6 mm (9.49 to 9.55 in.) 

   B: 

   215.1 to 216.7 mm (8.47 to 8.53 in.) 

   HINT:

   If the dimension of the front upper suspension arm assembly changes 2 mm (0.079 in.), the camber will change approximately 15' (0.25°).

   Fig 9: Inspecting Front Upper Suspension Arm Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Loosen the nut of the front No. 2 suspension camber adjust cam.
2. Turn the front No. 1 suspension camber adjust cam to adjust the camber.

   Camber: 

   -0°25' +- 45' (-0.42° +- 0.75°) 

   NOTE:

   • Inspect while the vehicle is empty.
   • The maximum tolerance of right and left difference for the camber and caster is 30' (0.5°) or less.
   • Be sure to inspect toe-in after the camber has been adjusted.
   Fig 10: Adjusting Camber (For 4WD)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   If the camber adjust cam is turned 1 notch to the left when viewing from the front of the vehicle (the bolt moves approximately 1 mm to the outside), the camber will change by approximately -0°08' (0.04 in.).

3. Tighten the camber adjust cam nut.

   Torque: 119 N*m (1,210 kgf*cm, 88 ft.*lbf)