Tail light grounding problem

[dtkarst]

Haven't driven my 64 c20 for far too long and went and fired it up and then remembered why I stopped driving and it was because of my tail lights. I'm thinking I have a ground problem because when I have my lights on, the driver side is lit up real bright and the passenger side is about normal brightness. Without my lights on, my driver side blinker and brake light do not work. Anyone have any issues like this before? Figured I'd ask the experts on here. Thank you