1980 Jeep J10 non functioning guages

You need to look for the voltage limiter or similar component that controls the input voltages to the gauges.

In the wiring diagram, what will this be called? I have looked for something like this and can't find it. Would it be incorporated in the Ford type starter solenoid that Jeep used?

Would it be incorporated in the Ford type starter solenoid that Jeep used?

I don't think its wired like that-if it is-you'll loose ignition switch power-Been looking for it in the Mitchell1 references for this year but nothing the only thing there could be a ground or the printed circuit board problem.