GM Service Manual Online
For 1990-2009 cars only

Truck Line

Caster

Cross Caster, L-R

Camber

Cross Camber, L-R

Total Toe

Steering Wheel Angle

Left

Right

Note: Caster is relative to the frame, the caster values must be compensated for the measured frame angle. Frame angle is positive when higher in the rear and negative when lower in the rear. Caster specifications are with respect to a zero frame angle. Refer to Front Caster and Camber Adjustment .

G10/G20 LD

4.00° ± 1.0°

4.30° ± 1.0°

-0.3° ± 0.75°

0.15° ± 0.60°

0.0° ± 0.60°

0.1° ± 0.20°

-0.4° ± 3.0°

G20 HD/G30

4.30° ± 1.0°

4.70° ± 1.0°

-0.4° ± 0.75°

0.25° ± 0.60°

0.0° ± 0.60°

0.1° ± 0.20°

-0.4° ± 3.0°

AWD

3.90° ± 1.0°

4.30° ± 1.0°

-0.4° ± 0.75°

0.15° ± 0.60°

0.0° ± 0.60°

0.1° ± 0.20°

-0.4° ± 3.0°