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 MANUALSCHEVROLET1971G10 VAN BASE, 4.1L ENG VIN CREPAIR AND DIAGNOSISMAINTENANCEPROCEDURESWHEEL ALIGNMENT (INSPECTION)CHEVROLET & GMC (W/COIL SPRINGS)CASTER
1971 Chevrolet G10 Van Base, 4.1L Eng VIN C
CHEVROLET & GMC (W/Coil Springs): Caster
1971 Chevrolet G10 Van Base, 4.1L Eng VIN CSECTION Caster
- Measure frame angle, in relation to level, directly behind cab. Using suitable alignment equipment, determine existing caster. Combine frame angle with caster angle to determine corrected caster angle as follows:
- - If frame is down in rear, frame angle must be subtracted from positive caster angle.
- - If frame is down in rear, frame angle must be added to negative caster angle.
- - If frame is up in rear, frame angle must be subtracted from negative caster angle.
- - If frame is up in rear, frame angle must be added to positive caster angle.
- Measure distance from top of jounce bumper bracket on lower control arm to bottom of frame crossmember. Determine correct caster angle for measured clearance and adjust. To increase caster, add shims between forward upper control arm attaching bolt and frame, or subtract shims from rear attaching bolt. To decrease caster, subtract shims from forward bolt, or add shims to rear bolt.
RENDER: 1.0x
NO RELATED
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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.