Recently converted to factory gauges in my 1963. The gas gauge that came out of the warning light cluster was #5644548. The gauge that came in the factory gauges was #5643018. When I converted over, everything worked but the gas gauge. I put all new wiring in front to back and New sending unit. I used the gas gauge out of the warnng lights because it was proven to work and in much better shape. My question is...do you think my gauge isn't working because of the different numbers?
