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 MANUALSCHEVROLET1987R 30 P/U 2WD V8-379 6.2L DSLREPAIR AND DIAGNOSISDIAGRAMSEXPLODED VIEWSAUTOMATIC TRANSMISSION/TRANSAXLE4L60 (700-R4) AUTOMATIC TRANSMISSION
1987 Chevrolet R 30 P/U 2WD V8-379 6.2L DSL
4L60 (700-R4) Automatic Transmission
1987 Chevrolet R 30 P/U 2WD V8-379 6.2L DSLSECTION 4L60 (700-R4) Automatic Transmission
Refer to the "Service Bulletins" section prior to performing the following procedures.
Refer to Figs. 2 and 4 during subassembly service and transmission assembly procedures.
Fig. 2, Transmission case & external parts exploded view (Part 1 of 2). 1987-88 Models:
Fig. 2, Transmission case & external parts exploded view (Part 2 of 2). 1987-88 Models:
Fig. 4, Transmission internal parts exploded view (Part 1 of 2):
Fig. 4, Transmission internal parts exploded view (Part 2 of 2):
Refer to Figs. 2 and 4 during subassembly service and transmission assembly procedures.
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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.