Alignment: Service and Repair

SUSPENSION: FRONT WHEEL ALIGNMENT (for 4WD and Pre-Runner): ADJUSTMENT

1. INSPECT TIRES Component Tests and General Diagnostics

2. MEASURE VEHICLE HEIGHT

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

(a) Bounce the vehicle up and down at the corners to stabilize the suspension.

(b) Measure the vehicle height.

Text in Illustration

Measuring points:

A
Ground clearance of front wheel center

B
Ground clearance of adjustment cam bolt center (front side)

C
Ground clearance of rear wheel center

D
Ground clearance of rear leaf spring front side bush center

Vehicle Height (Unloaded Vehicle) for USA/3 Leaf Spring:

for Mexico/4 Leaf Spring:

for Canada/4 Leaf Spring:

NOTICE:
The standard value shown here is a value that is used for adjusting the wheel alignment and does not indicate the height of an actual vehicle.

3. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION

(a) Install the camber-caster-kingpin gauge and position the front wheel on the wheel alignment tester.

Text in Illustration

(b) Inspect the camber, caster and steering axis inclination.

Camber, Caster and Steering Axis Inclination (Unloaded Vehicle) for USA/3 Leaf Spring:

for Mexico/4 Leaf Spring:

for Canada/4 Leaf Spring:

NOTICE:
* Perform the inspection while the vehicle is empty (without spare tires or tools on board).
* The tolerance for the difference between the left and right wheels is 0°30' (0.50°) or less for both the camber and caster.

If the steering axis inclination is not as specified after the camber and caster have been correctly adjusted, recheck the steering knuckle and front wheel for distortion and slack.

4. ADJUST CAMBER AND CASTER

NOTICE:
Inspect the toe-in after the camber has been adjusted.

(a) Loosen the nut and bolt.

(b) Turn camber adjust cam No. 2 and the toe adjust cam and adjust the camber and the caster.

HINT
Try to adjust the camber and caster to the central values.

Text in Illustration

(1) Measure the present alignment.

Camber:

0°17' (0.28°)

Caster:

1°28' (1.47°)

(2) Calculate the difference between the standard value (A) and the measured value (B) on the adjustment chart.

Standard value:

Camber
0°37' (0.61°)

Caster
1°38' (1.64°)

Formula
B - A = C

Camber
0°17' - (0°37') = -0°20'

Caster
1°28' - (1°38') = -0°10'

(3) As shown in the chart, read the distance from the marked point to the 0 point, and adjust the front and/or rear adjusting cams accordingly.

Toe adjust cam:

- (Shorter) 2.8

Camber adjust cam:

- (Shorter) 1.5

5. INSPECT TOE-IN

Text in Illustration

Toe-in (Unloaded Vehicle) for USA/3 Leaf Spring:

for Mexico/4 Leaf Spring:

for Canada/4 Leaf Spring:

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

6. ADJUST TOE-IN

(a) Remove the rack boot set clips.

(b) Loosen the tie rod end lock nuts.

(c) Turn the right and left rack ends uniformly to adjust the toe-in.

HINT
Try to adjust the toe-in to the middle of the specified range.

(d) Make sure that the lengths of the right and left rack ends are the same.

(e) Tighten the tie rod end lock nuts.

Torque : 56 Nm (566 kgf-cm, 41 ft-lbf)

(f) Place the boots on the seats and install the clips.

HINT
Make sure that the boots are not twisted.

7. INSPECT WHEEL TURNING ANGLE

(a) Turn the steering wheel fully, and measure the turning angle.

Text in Illustration

Wheel Turning Angle (Unloaded Vehicle):

If the right and left turning angles of the inside and outside wheels are not within the specified ranges, check the right and left rack end lengths.