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 MANUALSCHEVROLET1989BLAZER FULL SIZE V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSDIFFERENTIAL ASSEMBLYSYSTEM SPECIFICATIONSFRONT AXLEPINION PRELOAD AND BACKLASH
1989 Chevrolet Blazer Full Size V8-350 5.7L
Pinion Preload and Backlash
1989 Chevrolet Blazer Full Size V8-350 5.7LSECTION Pinion Preload and Backlash
K TRUCK FRONT AXLE
PINION PRELOAD 1.7-2.8 Nm (15-25 lb. in.)
BACKLASH
Acceptable 0.08-0.25 mm (0.003-0.010 in.)
Preferred 0.13-0.18 mm (0.005-0.007 in.)
PINION PRELOAD 1.7-2.8 Nm (15-25 lb. in.)
BACKLASH
Acceptable 0.08-0.25 mm (0.003-0.010 in.)
Preferred 0.13-0.18 mm (0.005-0.007 in.)
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.