He said he wanted to reuse his original Headlamp buckets, not assemblies. The bucket would be what is left, after the internal parts are removed.
Below is a picture of a typical GM headlamp reflector, from the 1930s. The big bulb in the center is the headlamp bulb, dual filament for high and low beam. The small bulb is the park light. When lit, it provides a glow to the headlight, not the bright?? beam to light your path. Even if fast55 was planning to keep this system, it would not be practical to try and create a turn signal by modifying the park lamp socket in the reflector.
