1974 Chevrolet/GMC C/K and G Truck Wiring Diagrams

This is a short set of fold-out wiring diagram sheets from the 1974 Chevrolet Light, Medium and Heavy Duty Trucks Wiring Diagrams book, covering the C/K 10, 20 and 30 series trucks. The cover page is followed by large schematic sheets printed on both sides: cab, engine and chassis wiring on the left and right sides, and a further sheet of miscellaneous RPO (regular production option) equipment circuits such as auxiliary fuel tanks and marker lamps.