Hi, yes, I replaced everything with 12 volt items. No, I havent checked for burned out bulbs yet. No, the flasher is part of the tail light. One bulb alone for signaling and stopping. They were newly installed with all the other bulbs. I have another question. Is the old "signal-stat 900" blinker switch that came with the truck, 6 volt??? That may be the problem? What do you think? Classicparts has one that is 6-12 volt able.

Wayne