Replacing Auto-Lamp 575- what's this second bulb for?
I'm replacing the Auto-lamp tail-lights on my 64 Globetrotter, and I got some stop/turn/tail schoolbus fixtures from etrailer.com. They came quickly and look good, but when I took off the old wedding cake lens, there are two lamps and three wires. I don't have the tow vehicle handy to light it all up, but I'm wondering what the second lamp is for. I thought it was going to be a single bulb with two filaments, stop and tail, and the stop lamp flashes for the turn signal; this is what the new tail lamps have.
Wherever you go, there you are