Wiring Diagrams — Chevrolet C/K Pickup 1973-1987

Technical Reference

Member-uploaded diagrams & documents for this generation. AI-classified; community-verified where badged.

Wiring Diagrams

• Dual Battery Winch Wiring Diagram - Alternator, Starter, Fuse & Isolator Sketch
  This is a simple, hand-drawn (computer-sketched) wiring diagram uploaded to a 1978 Chevrolet C/K Pickup gallery showing a dual-battery winch installation. The diagram depicts an alternator (ALT, yellow circle) and…
• Dual Fuel Tank Selector Switch Wiring Diagram - 1978 Chevy C/K Pickup
  This document is a simple hand-drawn (computer-sketched) wiring diagram illustrating how to wire a dual fuel tank setup with a tank selector switch, uploaded to a 1978 Chevrolet C/K Pickup gallery. A central component…
• Fog/Driving Light Relay Wiring Diagram - Bosch Relay, 20A Fuse, SPST Switch
  This document is a color-coded schematic wiring diagram for adding aftermarket fog or driving lights to a vehicle using a Bosch-style relay. It shows two fog/driving lamps, each independently grounded, fed from relay…
• Dual Battery & Winch Wiring Diagram - Isolator Switch Setup, 1978 Chevy C/K
  This document is a homemade pictorial wiring diagram (uploaded as 'wiring.jpg') showing a dual/auxiliary battery and winch power setup. At the top, two Duralast Gold batteries are shown linked with heavy red (positive)…