Complete 73-87 Wiring Diagrams News: 73-87ChevyTrucks offers select, high quality parts for sale that help fund this website and Forum. Take a moment to drop by The Store and shop our products. If you don't find what you're looking for, shoot us an email (webmaster@73-87chevytrucks) - it simply may not have been added yet add new items all of the time. WIRING DIAGRAMS - 73-87chevytrucks PDF fileWIRING DIAGRAMS DESCRIPTION These diagrams use a new format. The diagram is surrounded by a alpha/numeric loaction grid. All the wires at the connectors have alpha/numeric addresses showing where the other end of the wire is located ac cording to the grid. The Part 1 C10 Wiring Repair | Universal Wiring Harness - YouTube Click to view on Bing4:30In this video series, I replace the entire factory wiring harness in my 73-87 Chevy c10 pickup. I'm using a 20 circuit wiring harness from Speedway Motors. The part number for the wiring harnessAuthor: milkcrate82Views: 79K heat/AC wiring diagram - 73-87ChevyTrucks does anyone have a heat/AC wiring diagram for a 79? In my rewiring i seem to have ended up with constant power to the yellow wire to the heater resistors which results in Repair Guides - AutoZone AutoZone Repair Guide for your Chassis Electrical Wiring Diagrams Wiring Diagrams Full Color Laminated Wiring Diagram FITS 1977 Chevy C 10 Buy Full Color Laminated Wiring Diagram FITS 1977 Chevy C 10 Pick Up Truck Large 11" X 17" Size: Electrical - Amazon FREE DELIVERY possible on eligible purchases WIRING DIAGRAMS - 73-87chevytrucks PDF fileWIRING DIAGRAMS DESCRIPTION . The main wiring diagrams are laid out so that the After the main diagrams are systems diagrams. diagram corresponds in position to the actual wiring in These supplemental diagrams simplify the circuit trac the vehicle. Therefore, the headlight circuitry is located ing for the technician.