Taillight housing were bead blasted and have good grounds.
All the Tail lights work great.
All wiring harnesses are new.
All the bulbs are new in the dash
New printed circuit for the Ralley gauges and I tested the grounding. I may need to pull it again and double check thoes connections.
I never checked the flashers.

I suspect the steering column as I painted it and I'm wondering if overspray is keeping the contacts from working.

I was reading the horror stories in the archives. I see Vicky recommended using a test light at the fuse panel. This seems like the most basic check I can do.

Do I just put the light on the flasher fuse and the other side to ground?