The Stovebolt Site Forums The Shop Area The Electrical Bay tail lights don't work (1953 Chevy)

Just got my truck on the road again to find my tail lights don’t work. Parking tail lights and brake light). Only the turn signals work with the ignition switch on.
Yesterday the brake lights worked but not the parking light.
I have new tail lights that I added on a couple of years ago.
I don’t think the switch is the problem.
Asking where to begin looking and move forward? The wires on the brake pedal switch are connected. I followed the driver side wire from the tail light to the front.
I didn’t have time to follow the Px side wires.