Front Caster and Camber Adjustment

FRONT CASTER AND CAMBER ADJUSTMENT

NOTE: Before checking or adjusting caster and camber angles, jounce vehicle at least 3 times to prevent false geometric readings.

4 X 2 MODELS

(Figure 1) Caster & camber adjustment. 4 x 2 models:

Caster and camber adjustments are made by shims inserted between upper control arm shaft and frame bracket, refer to (Figure 1). Add, subtract, or transfer shims to change readings as noted below:

To adjust caster and/or camber, loosen upper control arm shaft to frame nuts, then add or subtract shims as necessary and torque upper control arm shaft to frame nuts to 88 Nm (65 ft lbs).
After adjustment, the shim pack should have at least two threads of bolt exposed beyond the nut. The difference between front and rear shim packs must not exceed 10 mm (0.40 inch).

Caster
Transfer shims from front to rear, or rear to front. The transfer of shims from rear to front bolt will decrease positive caster.

Camber
Change shims at both front and rear of shaft. Adding an equal amount of shims at both front and rear locations will decrease positive camber.

4 X 4 MODELS

(Figure 2) Caster/Camber Adjustment - 4WD Models:

Caster and camber adjustments are made by cam mounted upper control arm attaching bolts, refer to (Figure 2).
To adjust caster and/or camber, loosen upper control arm to frame attaching bolt nut, then rotate cam by turning bolt head. When proper alignment settings are established, torque upper control arm to frame attaching bolt nuts to 95 Nm (70 ft lbs).

Caster
To increase positive caster, move front cam lobe inward and rear cam lobe outward.

Camber
To increase positive camber, move both front and rear cam lobes inward.