I installed a clean ground wire on both tail lights. I used the dremmel to clean off a spot on the frame & used a stainless steel bolt with di-electric grease.
This did not correct the issue.
In addition - while I was backing my truck into the garage where it was a little darker & easier to see the lights I noticed I had no brake lights.
I started playing around & found out that with the turn signal switch centered I have no brake lights. With it kind of activated (enough to turn on one light but not all the way on) both brake lights work normally. With the switch all the way activated I only get brake lights on the side that is lit (opposite of switch).
I'm about to replace the entire wire harness just because I don't like mysteries.
