I have contacted Bright Lights regarding their LED tailights for my 52 Vic. My car is positive ground 6 volts. They say their LED'S are negative ground. Therefore I assume these lights will not work on my car. What do you think?
if the lamps are wired with one side grounded through the mounting in a way that you can not alter it, you are out of luck. If you can get to the wires and reverse the power and ground leads, then they would work.
I went with 6 volt LEDs I found on E Bay that work fine in a positive ground. No mods, they work great right out of the box on 6 volts, positive ground. Very bright! No need to change wiring or voltage.