How to Install a Wiring Harness- 67-72 Chevy C10 Truck Click to view on Bing10:52This BROTHERS Tech Tips video is part 1 on how to install a wiring harness on your 67-72 Chevrolet / GMC pickup truck. Learn how to install a wiring harness with this step by step tutorial. If youAuthor: BROTHERS Truck PartsViews: 47K 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 Wiring Harnesses for Classic Chevy trucks and GMC trucks Wiring harnesses, wiring harness clips, and obsolete parts for classic Chevy trucks and GMC trucks from Classic Parts of America. Wiring Harnesses | Bob's Chevy Trucks If the wiring in your Chevy or GMC truck is cracked, patched with electrical tape or has new wiring spliced in, it definitely needs to be replaced.