Cannot get my taillights to work on my 1964 Grand Prix. Turn signals, brake lights, front drive/signal lights, headlights all work. New Delco headlight switch. Ran wire from battery direct to rear taillight harness, and taillights work. What am I missing?

 

 

 

 

Would check to make sure that you don't have a break in wire somewhere in the wiring harness....Or a bad ground......This may sound crazy but do you have the correct bulbs...? Supposed to be a dual filament  bulb....One filament for the stop/turn and one for running lights....Pretty sure it is a 1034 bulb or maybe an 1157.....