Tachometer, fuel gauge, temperature gauge die intermittently

I'm a new owner of a 1984 B2000, automatic, with 101,000 miles. On occasion when I throw my turn signal on it will kill the tach, fuel, and temp gauges. Give it a little while and they usually come back on their own, sometimes. While the cluster is down I can turn on the hazard lights and they will flash but when I depress the brake pedal the hazard lights stop in the on position until I release the brake.

I've not noticed it happening consistently at a given time or under any particular circumstance. Any idea's or suggestions?

maybe the wire harness plugs on the back of the cluster r loose btw nice truck