A wire from the brake light switch runs to the turn signal switch in the '60s column. Wires run from there to the bright bulbs. The dimmer bulbs are the tail lights.
Ahhh... okay, so the brake lights and turn signals share a bulb? And the tail lights are their own bulb? So how do the brake lights and turn signals share a bulb when the bulb only has one element? How do they flash at the same time you are applying the brake? I would have thought there would be at least one bulb in the housing with two elements, and separate wires for each function.
