Oh mighty Hot-Rod collective, I recently ran out of gas, in my 53 Cadillac. No surprise, as my gauge was sloppy. As the gas would slosh in the tank, the gauge would float up and down. So I replaced the sending unit, with a new one. I also re-terminated the wire the sending unit as it was frayed and unhealthy looking. It seems to do the same thing, just not as bad. Is there somewhere else I should look? My car buddy suggests a resistor that may be bad or the gauge itself. Does anyone have any insight?