[mnunn454]

Welcome from another fairly new 69 C-10 owner that's new to the site too.

I had gage wiring problems with mine too. Almost nothing worked. Almost everything was burnt out or burnt up. I installed new aftermarket gages in the 4 holes across the bottom, 4 new push in and twist marker lights in the back of the cluster for the larger gage backlighting and rebuilt the original gas, tach and speedo gages.

I hard wired everything (hated that printed circuit harness with a vengence) using a pair of 6 connector trailer pigtail connectors (12 connection wires in all). It took some lengthy pin-out wire tracing and testing to get the connections right, but she works and looks like a champ now. Plus, whenever I want, I can pull the loaded gage cluster out and set it on the workbench with no loss of time, or fear of cross wiring it when I put it back.

If you're not up to this, don't worry. There are easier solutions. I chose the major overhaul approach.