A LED works in only polarity. That means if you invert the LED it will have terminals in correct polarity. LED means "light emitting DIODE. A diode has a + terminal and a - one.
I have 2 67 Dart backup lights, complete with mounting hardware, pigtails, and screws. Only 1 has a lens, the other has dinged crome and no lens. I need $50 and u haul to Omaha. Im in Western Colo. 81403
Here are photos of bumper and lights. One light is missing lens. Bumper is nice and straight, has a "bubble above license mounting. I dont know what that is but it might need to be massaged and rechrome for some people. I need $175 for bumper am $40 for lamps. I have some trim and tail...
I have what u need. I have a rear bumper and the lights. Bumper isnt straight but it might bolt up. Really in Denver u wont have too much problem. Not only that, I live in Montrose and might make a trip to the far side this spring to see nephew. I'll make sure this isnt fake news tomorrow...
I have a set of heads Casting 2406516-1. These are listed for 64 413 and max wedge engines. I removed them from a 300K I owned years ago. Make me a good offer. I'm in colorado.