[Prerunner1982]

my license lights have a bunch of fingers on the back side that keep it in the bumper, i had one go out.. i pulled it and put my trailer light connection there.. i never figured out how to check the bulb.. i still have the light. if you have the same kind it might be easier to replace the whole thing, i think it only cost a couple bucks, probably as much as buying a replacement bulb. the just cut the wire and splice it....