Fuel gauge Intermittently worked,..now nothing. 66 Valiant

Ok got it sorted. The dash cluster was very easy to remove,, about 15 minutes to get out. I found that the 2 nuts that hold the fuel gauge were corroded slightly and a bit loose. So, I went ahead and removed them one at a time and used 400 wet/dry sandpaper and clean the circuit board and the nuts. Did this for every connection on the cluster and replaced all the bulbs. As soon as I cleaned those points the gauge fired right up. It was just bad connections and loose mounting nuts. All is good now and time to take it for a ride..!! Thank you everyone for all the help.