push-button dude
i dont know about the top, but if your voltage limiter for your gauges is bad, your gauges wont work, its located inside your fuel gauge and is kind of a pain to deal with. one thing that i have found on these old mopars is that by now the electrical systems usually have issues, dirty and loose connections lead to high resistance and melted wires. i usually suggest to people that they seriously think about replacing their wiring in there car.