Older style headlights may require a bit more disassembly. A turn or two with a screwdriver onto a few fasteners will usually get things apart in no time. Tip: Some screws may not need to come all the way out. Place tiny screws and fasteners that do come out in a place where they won't get spilled into the grass or dirt. As with more modern equivalents, replacing headlamps in pairs is a good idea.