73' duster wont start after dropping steering column

No the amp gauge is completely separate. The path for the gauges (I assume you don't have a Ralleye cluster) is......Power from the key "ignition run" circuit.........to the PC board on the cluster....to the instrument regulator........branches off to fuel and temp gauge......through the gauges.....back out to separate PC board pins......and off to the respective senders.......and to ground

If neither gauge works MAKE SURE the cluster is grounded. It originally grounds through the mounting bolts, which "is a poor deal." Wise to add a grounding pigtail at a common point (one of the PC board bolts, you can follow the traces) long enough to bolt to the dash frame or steering column support bracket