68’ 300 brake light problem

[ChryslerCaptain]

The other day a Friend was following me and noticed that only my passenger side brake light works. Does anyone know what it could be? I have of course, checked the bulbs fuses and all connections. Yet still no driver side brake lights it has me stumped.
Not sure if this is related or not but a few months ago, the car was having a problem where the turn signals wouldn’t work with the headlights on. I changed the flasher, which seemed to fix that problem.

 

[SPF Required]

There is a spot in the trunk where all the grounds for the tail lights come together. When I was having some electrical gremlins take hold on the back section of my ‘68 300, cleaning up that connection point seemed to get things right again. I did also wire brush the bulb connectors where they connect to the lens to make that connection stronger too.

 

[carguy300]

Sure sounds like ground issue to me.