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 MANUALSCHEVROLET1986C 10 P/U 2WD V8-350 5.7LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIRPROCEDURES4L60 (700-R4) AUTOMATIC TRANSMISSIONSPEEDOMETER DRIVEN GEAR REPLACE
1986 Chevrolet C 10 P/U 2WD V8-350 5.7L
Speedometer Driven Gear Replace
1986 Chevrolet C 10 P/U 2WD V8-350 5.7LSECTION Speedometer Driven Gear Replace
1. Disconnect speedometer cable or P.M. generator electrical connector at transmission.
2. Remove retainer bolt, retainer, P.M. generator if equipped, speedometer driven gear and O-ring seal.
3. Reverse procedure to install, using new O-ring and adjusting fluid level.
2. Remove retainer bolt, retainer, P.M. generator if equipped, speedometer driven gear and O-ring seal.
3. Reverse procedure to install, using new O-ring and adjusting fluid level.
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.