57 bird gauge problems
Sounds like you have a temperature gauge for a 56 Ford car. They look the same but they will not work with the 57 Tbird
and they rest on hot the 57 Bird rests on cold. The sending units for the two are not compatible either. You may have a
56 car fuel gauge also. They look the same and they rest on empty but the sending units are also different. The CVU regulator was not used on 56 Ford cars nor 56 Tbirds. The 57 gauges are calibrated to read correctly with the 57 Bird CVU regulator.