'67 Dart - No stop lights, turn signals on but don't flash

I recently posted the specs for a 1034 or 1157 bulb. It's an indexed bayonet base. However the bayonet can be forced out of the correct postion with less effort than we'd like... (see '69 valiant electrical gremlin thread link below)
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Based on you tests so far, I think the place to begin is the right front bulb. Either the bulb isn't working, its not in the socket correctly, or the socket's not grounded to earth.

When a socket isn't directly grounded, the electicity can often find another path to ground through the other filament. This doesn't work when there ia 12 Volt connection to the other filament.

There's been some threads in the past year about repairing tail lights and front parking lights. I know I posted one, and IIRC Murray , Dana, and Redfish either commented or posted their own examples.

edit: Mine was actually reverse lamps.
This one. 67, 69 Barracuda and similar early reverse lights

69 valiant electrical gremlin turn signal and license plate light


Also since the short seemed to be resolved after moving tail lamp wires around, and also some poking around under the dash, visually check all the wires for chafing of insulations. Rewrap as needed and then make sure the harness are retained in their postions with the factory clips.