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 MANUALSCHEVROLET1986CHEVY VAN G20, 5.0 H, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSREMOVAL & INSTALLATION - A/TTRANSMISSIONSALL MODELS (EXC. ASTRO/SAFARI VAN, "S" & "K" SERIES)REMOVALNOTES
1986 Chevrolet Chevy Van G20, 5.0 H, Standard
All Models (Exc. Astro/Safari Van, "S" & "K" Series): Removal: Notes
1986 Chevrolet Chevy Van G20, 5.0 H, StandardSECTION Notes
- Disconnect negative battery cable. Remove air cleaner and disconnect T.V. or detent cable at carburetor. Remove dipstick and filler tube support bracket bolt. Raise and support vehicle. Mark drive shaft for reassembly reference and remove from vehicle.
- Disconnect speedometer cable and shift linkage and all electrical leads from transmission. Remove transmission support brackets (if present) and flywheel inspection cover.
- Mark flex plate and torque converter for reassembly in same position and remove torque converter-to-flex plate bolts. Disconnect catalytic converter support bracket (if equipped).
- Remove transmission rear mount bolts. Support transmission with jack and raise slightly. Remove transmission support-to-frame bolts and insulators. Remove support.
- Lower transmission enough to remove oil cooler lines and TV or detent cable from transmission. Disconnect lines and cable. Support engine with jack and remove transmission-to-engine bolts.
- Disconnect transmission assembly from engine. Install Torque Converter Retainer (J-21366) and remove transmission from vehicle.
RENDER: 1.0x
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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.