1984 Chevrolet C70 Service and Repair Manual

This factory service and repair manual for the 1984 Chevrolet C70 is a heavy-truck book in everything but name. Five of its seven engines are diesels, including naturally aspirated and turbocharged versions of both the 8.2L and the 10.4L V8 and a turbocharged 6.1L inline-six of 374 cubic inches; the gasoline pair are the overhead-valve 6.0L and the 7.0L of 427 cubic inches. Two bodies and three codes cover a medium conventional straight truck and a two-door cab and chassis.

Engines covered

• 6.0L V8 (366 cu in) — OHV, naturally aspirated, gasoline
• 7.0L V8 (427 cu in) — naturally aspirated, gasoline
• 6.1L inline-six (374 cu in) — turbocharged, diesel
• 8.2L V8 (501 cu in) — turbocharged, diesel
• 10.4L V8 (636 cu in) — turbocharged, diesel
• 10.4L V8 (636 cu in) — naturally aspirated, diesel
• 8.2L V8 (501 cu in) — naturally aspirated, diesel

Body styles covered

• Straight truck, medium conventional
• 2-door cab & chassis, conventional

Trims covered

• C7D042
• C7D044
• C7D064

Known issues on the 1984 C70. Neither a recall nor an owner complaint stands against the 1984 C70 on the federal record. That leaves the manual to do the identifying and the specifying: which of seven engines is in the frame, what its clearances and torque values are, and how its fuel and cooling systems are serviced, then how the transmission, driveshafts, axles, brakes and steering behind it are measured, adjusted and diagnosed, with wiring diagrams for the cab and chassis circuits.