Cletis, I appreciate the quick response. I tried changing the brake switch connections around and I believe I have fixed the whole thing. The wire leading from the brake switch to the fuse box was yellow with one green stripe, so I assumed that was the battery side..turns out both wires from the brake switch were the same color and had the same green stripe. So reversing them gave me the fix. I had the tail light wire hooked to the battery post on the switch. The technician that wire the truck in 47 must have run short of a different color wire to run to the brake light. This is what makes this so much fun.

1947 Chevy Thriftmaster 1/2-Ton