65 Barracuda gauge problems

Im not exactly what pins we are referring to. The limiter is a 3 blade male plug in. And the pins for the wiring harness has about 10 pins on it. There is a ground wire that goes from the printed circuit board to the metal frame that the steering column bolts to. I dont think its factory from what I can tell. I will take some photos of the back of the cluster so I can give you a better idea of what everything looks like. There is alot of slop in the limiter when its plugged in to the board and no power flowing through it that I can tell. My test light did not light up when I checked it.