Mike - Thanks for the level of detail. I didn't consider the fixture being refitted - duh. You've put a lot of effort into it and I don't see why anyone could give you any grief over having a third brake light.
So maybe I misunderstood your predicament to be that it was only this light wasn't working. Was it all 3 not lighting up, or just the center one???
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)