Front

FRONT WHEEL ALIGNMENT (4WD)

MODEL APPLICATION AND IDENTIFICATION
RZN161L = Regular Cab
RZN171L = Extra Cab with 4 cylinder engine
VZN170L = Extra Cab with 6 cylinder engine


INSPECTION

1. MEASURE VEHICLE HEIGHT.








Measuring points:
A: Ground clearance of spindle center.
B: Ground clearance of front adjusting cam bolt center.
C: Ground clearance of leaf spring front hanger pin center.
D: Ground clearance of rear axle shaft center.

NOTICE: Before inspecting the wheel alignment, adjust the vehicle height to 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 OR ONTO WHEEL ALIGNMENT TESTER.
Follow the specific instructions of the equipment manufacturer.

3. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION.





RZN161L = Regular Cab





RZN171L = Extra Cab with 4 cylinder engine





VZN170L = Extra Cab with 6 cylinder engine

If the steering axis inclination is not within the specification, after camber and caster have correctly adjusted, recheck the steering knuckle front wheel for bearing or looseness.

Measuring Point Reference:

4. INSPECT TOE-IN.





If the toe-in is not within the specification, adjust the rack ends.





5. ADJUST CAMBER AND CASTER.
a. Loosen the front and/or rear adjusting cam nuts.
b. Adjust the camber and caster by front and/or rear adjusting cams.

HINT: Try to adjust the camber and caster to the center value.

c. Torque the front and/or rear adjusting cam nuts.
Torque to 130 Nm (96 ft. lbs.)

6. ADJUST TOE-IN AND WHEEL ANGLE.

HINT: First, check or adjust the lengths of the tie rod ends, then adjust the toe-in.





Rack end length difference: 1.5 mm (0.059 inch) or less
a. Remove the boot clamps.
b. Loosen the rack end lock nuts.





c. Turn the left and right rack ends an amount to adjust the toe-in.

HINT: Try to adjust the camber and caster to the center value.

d. Tighten the rack end lock nuts.
Torque to 55 Nm (41 ft. lbs.)

e. Place the boot on the seat and clip it.

HINT: Ensure that the boots are not twisted.





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





If wheel angle deviates from the specifications, readjust the toe-in and wheel angle within the specifications. At this time, the left-right error lengths of the tie rod end may be less than 1.5 mm (0.059 inch).





7. HOW TO READ ADJUSTMENT CHART.
a. Find the wheel alignment standard value applicable for the particular model.
b. Mark the selected standard value on the adjustment chart.
Example (VZN161L):
Camber: 0°10' (0.17°)
Caster: 1°40' (1.67°)
c. Mark on the adjustment chart the alignment values measured at the non-loaded vehicle height.
Example:
Camber: -0°10' (-0.17°)
Caster: 1°40' (1.67°)








d. As shown in the chart, read the distance from the standard value to the measured value, and adjust the front and/or rear adjusting cams accordingly.
Example:
Front cam: -(Longer) 2.8
Rear cam: -(Shorter) 2.8

HINT: If the tie rods lengths are not equal, the wheel angle cannot be adjusted properly.