1981 Chevrolet and GMC Medium Duty C50 C60 C70 Gas Wiring Diagram Original C5000 C6000 C7000

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This is the original wiring diagram printed by GM for dealer mechanics. You can follow the wiring in your truck from bumper-to-bumper. It will help you to understand connector configurations, and locate & identify circuits, relays, and grounds. Although the schematic is in black and white, the color of each wire is noted. You will not find this diagram in your shop manual. The schematic measures 8.5" x 11" when folded up, and opens up to 11" by 38". The diagram pictured is an example of this type when folded, but is not the actual diagram for your vehicle. Buy now for the best electrical repair info - the factory wiring diagram.

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Exact Title:	Wiring Diagrams Medium/Heavy Truck 1981 GM C5, C6, C7 w/Gasoline Engine
Page Count:	1
Wiring Diagrams?:	Included
Authenticity:	This item is original.
Dimensions:	11.00 x 8.50 x 0.10
OEM Part Number:	MD19874

Covers medium duty Chevrolet and GMC conventional truck models C5, C50, C5000, C, C60, C6000, C7, C70, C7000, with gasoline engine. To verify that this is the correct diagram for your truck, you can check your VIN code. The 6th digit should be a D for the medium duty conventional cab, and the 10th digit should be a B to indicate the 1981 model year.

1981 Chevrolet C50 C5D042	1981 Chevrolet C70 C7D044	1981 GMC C6000 C6D062
1981 Chevrolet C60 C6D042	1981 Chevrolet C70 C7D064	1981 GMC C7000 C7D042
1981 Chevrolet C60 C6D062	1981 GMC C5000 C5D042	1981 GMC C7000 C7D044
1981 Chevrolet C70 C7D042	1981 GMC C6000 C6D042	1981 GMC C7000 C7D064