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 MANUALSGMC1966PB1000 SERIES 3.8L ENG VIN S, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)SUSPENSIONWHEEL ALIGNMENTWHEEL ALIGNMENT (INSPECTION)CHEVROLET & GMC (W/LEAF SPRINGS)CASTER
1966 GMC PB1000 Series 3.8L Eng VIN S, Automatic Trans
CHEVROLET & GMC (W/Leaf Springs): Caster
1966 GMC PB1000 Series 3.8L Eng VIN S, Automatic TransSECTION Caster
Caster adjustment is accomplished by inserting wedge between spring and axle. To increase caster, insert wedge with thick position toward rear of vehicle. To decrease caster, insert wedge with thick portion toward front of vehicle.
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.