My 1946 1/2 ton has already been converted to 12 volt. When I was taking it apart, I noticed that there was an aftermarket oil pressure gauge and an aftermarket amp meter. I have no clue if the fuel gauge works or not.
The truck has a 1957 235 engine in it. Could this be the reason for the aftermarket oil pressure gauge? Mayne the original cannot handle higher pressure?
What gauges in the instrument panel are effected by the 12 volts?
I want to get away from using aftermarket gauges. How do I accomplish this?