My truck is becoming a problem vehicle. My tailights decided to stop working. Its a 78 Ford F100 Ranger. A couple weeks ago my tailights wernt on, then I hit a bump and they came on. Next day they wouldnt work and they havnt worked since, its been a couple weeks and thats a problem because I leave work when its dark and this is my only vehicle to drive at the moment. I checked to make sure there were no broken wires, and as far as I can tell theyre all good for being 30some years old. I also changed the headlight switch thinking that was the problem. My dash lights were always dim, and when the tailights completely stopped working so did my dash lights. I noticed the license plate light isnt working either and I'm wondering if that bulb went out, could that be the problem? I dont know if the bulb is bad or if its just not working because the tailights wont. I know the bulbs are good in the tailights are good because they come on when I press the brakes. If you have any ideas please let me know, its fairly urgent as driving the truck at night is not optional.