[Jonboy]

I need some help with the wiring plug on the tach dash I got for my Blazer. I have a 77, and have a 79 cluster. I have a mechanical gauge to fit the hole, so that is not a big convern. My question is about the wiring for the main cluster plug. Does anyone have a diagram for the plug, so I can repin what I have and make it work? I have the tach wiring figured out, just need help with the main plug. Thanks in advance!