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.
1976 Truck Wiring Diagrams MD 14284
This item is original.
11.00 x 8.50 x 0.10 inches
Covers Chevy and GMC 9000 and 9500 models with 8V-71 GM diesel engines, also known as HH-90, JH-90, HH-95, and JH-95. To verify that this is the correct diagram for your truck, you can check your VIN code. The 2nd digit should be either an H or a J for the conventional cab, the third digit should be an H for the 8V-71 engine, and the 6th digit should be a 6 to indicate 1976.
1976 Chevrolet 70-90 Series Heavy Duty
1976 GMC Series 7500-9500
1976 Chevrolet 70-90 Series Heavy Duty 1976 GMC Series 7500-9500