Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001EXPRESS 1/2 TON VAN V6-4.3L VIN WREPAIR AND DIAGNOSISMAINTENANCEALIGNMENTSERVICE AND REPAIRFRONT WHEEL ALIGNMENTFRONT CASTER AND CAMBER ADJUSTMENT
2001 Chevrolet Express 1/2 Ton Van V6-4.3L VIN W
Front Caster and Camber Adjustment
2001 Chevrolet Express 1/2 Ton Van V6-4.3L VIN WSECTION Front Caster and Camber Adjustment
Front Caster and Camber Adjustment
The caster and camber adjustments are made by rotating the offset cam bolt and the cam in the slotted frame bracket in order to reposition the control arm.
Important: Before adjusting the caster and camber angles, jounce the front bumper three times to allow the vehicle to return to normal height.
Measure and adjust the caster and the camber with the vehicle at curb height. The front suspension Z dimension and the rear suspension D dimension are indicated in Trim Heights.
1. For an accurate reading, do not push or pull on the tires during the alignment process.
2. Determine the caster (2,3) angle.
3. Determine the camber (2,3) angle.
4. If the caster and the camber angles are not within specifications, remove the frame bracket knockouts.
Notice: Refer to Fastener Notice in Service Precautions.
5. Adjust the caster and the camber angle by turning the cam bolts until the specifications have been met.
When the adjustments are complete, hold the cam bolt head in order to ensure the cam bolt position does not change while tightening the nut.
Tighten the cam nuts to 190 Nm (140 ft. lbs.).
6. Verify that the caster and the camber are still within specifications. Refer to Wheel Alignment Specifications.
If the caster and camber are within specifications. Refer to Front Toe Adjustment.
The caster and camber adjustments are made by rotating the offset cam bolt and the cam in the slotted frame bracket in order to reposition the control arm.
Important: Before adjusting the caster and camber angles, jounce the front bumper three times to allow the vehicle to return to normal height.
Measure and adjust the caster and the camber with the vehicle at curb height. The front suspension Z dimension and the rear suspension D dimension are indicated in Trim Heights.
1. For an accurate reading, do not push or pull on the tires during the alignment process.
2. Determine the caster (2,3) angle.
3. Determine the camber (2,3) angle.
4. If the caster and the camber angles are not within specifications, remove the frame bracket knockouts.
Notice: Refer to Fastener Notice in Service Precautions.
5. Adjust the caster and the camber angle by turning the cam bolts until the specifications have been met.
When the adjustments are complete, hold the cam bolt head in order to ensure the cam bolt position does not change while tightening the nut.
Tighten the cam nuts to 190 Nm (140 ft. lbs.).
6. Verify that the caster and the camber are still within specifications. Refer to Wheel Alignment Specifications.
If the caster and camber are within specifications. Refer to Front Toe Adjustment.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.