1983 GMC G1500 Service and Repair Manual
This factory service and repair manual for the 1983 GMC G1500 lists four trims, Rally, Rally Custom, Rally STX and the Vandura, across three body configurations: standard and extended cargo vans and a standard passenger van. The engine bay could hold the 5.0L V8, the 4.1L inline-six or the 5.7L V8, all naturally aspirated and overhead valve. The manual gives each of the three its own mechanical specifications, bearing and valve clearances, torque sequences and tune-up figures, then covers the shared chassis and body systems in the same detail.
Engines covered
- 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
- 4.1L inline-six (250 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 3-door standard cargo van
- 3-door standard passenger van
- 3-door extended cargo van
Trims covered
- Rally
- Rally Custom
- Rally STX
- Vandura
Known issues on the 1983 G1500. Nothing is on the federal record against the 1983 G1500, neither recalls nor owner complaints, so the manual's worth lies entirely in its procedures. Those run to engine removal and overhaul for the inline-six and both V8s, manual and automatic transmission service, propeller shaft and rear axle work, front end alignment specifications, drum and disc brake overhaul, fuel and ignition diagnosis, and the heating and body circuit systems, each with the wiring diagrams and torque values the work calls for.
