Flipping the switch on a full set of working lights to finish up a restoration is quite the accomplishment. Even though the system seems simple when it’s working, those who have had to troubleshoot headlights, tail lights, marker lights, or turn signals know the mess of wiring, grounds, and burned-out bulbs that can ensue. When you do run across a light-less lamp, fifty-plus years of corrosion usually makes the part number difficult to read at best and nonexistent at worst.
To ease the bulb shopping burden, Classic Industries put together a set of super handy bulb charts for 1960-1976 A- and B-bodies as well as 1970-1974 E-bodies. Each chart is divided by body style, year, and bulb application. For example, our 1970 GTX project was in dire need of a couple of new fender-mounted turn signal bulbs.
However, corrosion on the housing made it difficult to discern bulb number. Using Classic’s chart, we scrolled over to the proper 1970 column, then thumbed through the rows until we hit “fender mounted turn signal.” A 330 bulb was up to the task and easily found in Classic’s online catalog.
Each chart contains no less than thirty lamp applications, so chances are good that the information will light your way to the proper page in the Classic catalog. If you don’t see what you’re looking for, their experts can surely fill in the blanks. Just give them a call (800) 854-1280 or browse the lighting section online.