Instrument cluster voltage limiter.

I have a 67 Valiant. My ammeter and temp gauges are not working. They did, until I pulled out the cluster to replace the dash bulbs. I must have done something, don't know what.
Is it possible that I shorted out the voltage limiter? I am still getting power at the temp gauge at the circuit board. The ammeter is stuck at 5/8 of scale. Won't move at all. The temp gauge is just buried at "C" I'm stuck. Please help. Thanks