Front
1. Measure the vehicle height.
Front: A-B
Rear: C-D
Measuring Points:
A: Steering knuckle height measured at its center on the outer edge.
B: Lower suspension arm front adjusting bolt height measured at its center.
C: Rear axle shaft height measured at its center.
D: Rear leaf spring front bushing height measured at its center.
NOTICE: Before inspecting the wheel alignment, adjust the vehicle height to specification. If the vehicle height is not standard, try to adjust it by pushing down on or lifting the body.
2. Install Camber-caster-kingpin Gauge or onto the wheel alignment tester. Follow the specific instructions of the equipment manufacturer.
3. Inspect the camber, caster and the steering axis inclination.
Camber: 0° 00' ± 45'.
Left-Right Error: 45' or less.
Caster: 4° 00' ± 45'.
Left-Right Error: 45' or less.
Steering Axis Inclination: 12° 30' ± 45'.
Left-Right Error: 45' or less.
NOTE: If the steering axis inclination is not as specified, after camber and caster have correctly adjusted, recheck the steering knuckle front wheel for bearing or looseness.
Measuring Point Reference:
4. Inspect the toe-in. Toe-in (totals):
STD Cab 1/2 Ton:
A+B: 0° ± 0.2°.
C-D: 0 ± 2 mm.
Extra Cab P215/75 R15:
A+B: 0.36° ± 0.2°.
C-D: 4.7 ± 2 mm.
Extra Cab P235/75 R15:
A+B: 0.36° ± 0.2°.
C-D: 4.9 ± 2 mm.
NOTE: If the toe-in is not within the specification, adjust the tie rod end.
5. Adjust the camber and caster, as follows:
Camber: 0° 00' ± 30'.
Left-Right Error: 30' or less.
Caster: 4° 00' ± 30'.
Left-Right Error: 30' or less.
NOTE: Try to adjust the camber and caster to center value.
If camber or caster is not within the specification adjust by adding or removing shims on the upper suspension arm.
Shim Thickness:
- 4.0 mm (0.157 inch).
NOTE: If the steering axis inclination is not as specified after camber and caster have been correctly adjusted, recheck the steering knuckle and front wheel for distortion or looseness.
NOTICE: Adjust the shim thickness to 7 mm (+4, -3), and adjust the difference between the front and rear of the upper suspension arm shaft to within 4 mm. If this adjustment is not possible, adjust the strut bar bush set nut.
6. Adjust the toe-in, as follows:
a. Remove the boot clamps.
b. Loosen the tie rod end lock nuts.
STD Cab 1/2 Ton:
A+B: 0° ± 0.1°.
C-D: 0 ± 1 mm.
Extra Cab P215/75 R15:
A+B: 0.38° ± 0.1°.
C-D: 4.7 ± 2 mm.
Extra Cab P235/75 R15:
A+B: 0.38° ± 0.1°.
C-D: 4.9 ± 1 mm.
c. Turn the left and right tie rack ends an amount to adjust the toe-in.
Rack End Difference: 3.0 mm (0.118 inch) or less.
NOTE:
^ Try to adjust the toe-in to the center value.
^ Make sure that the length of the left and right rack ends is the same.
d. Tighten the tie rod end lock nut.
Torque: 56 Nm (41 ft. lbs.).
e. Place the boot on the seat and clip it.
NOTE: Insure that the boots are not twisted.
7. Inspect the wheel angle by turning the steering wheel fully, and measure the turning angle.
STD Cab 1/2 Ton:
Inside Wheel: 40°40' ± 2°.
Outside Wheel (Reference): 35°06'.
Left-Right Error: 30'.
STD Cab 1 Ton:
Inside Wheel: 40°23' ± 2°.
Outside Wheel (Reference): 35°19'.
Left-Right Error: 30'.
Extra Cab:
Inside Wheel: 40°50' ± 2°.
Outside Wheel (Reference): 35°41'.
Left-Right Error: 30'.
If the wheel angle differ from the standard specifications, check to see if the lengths of the left and right tie rods are the same.
NOTE: If the tie rods lengths are not equal, the wheel angle can not be adjusted properly. Reinspect the toe-in after adjusting the tie rods lengths.