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 MANUALSCHEVROLET1985C 20 P/U 2WD V8-350 5.7LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIRPROCEDURES4L60 (700-R4) AUTOMATIC TRANSMISSIONREAR OIL SEAL REPLACE
1985 Chevrolet C 20 P/U 2WD V8-350 5.7L
Rear Oil Seal Replace
1985 Chevrolet C 20 P/U 2WD V8-350 5.7LSECTION Rear Oil Seal Replace
1. Remove driveshaft, and tunnel strap, if equipped.
2. Using suitable tool, pry out lip oil seal.
3. Coat outer casting of new oil seal with suitable sealer and drive into place with installer J-21426.
4. Install tunnel strap if used, then install driveshaft.
2. Using suitable tool, pry out lip oil seal.
3. Coat outer casting of new oil seal with suitable sealer and drive into place with installer J-21426.
4. Install tunnel strap if used, then install driveshaft.
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.