First off, the truck is a 1970 C-10 that my son and I are doing a mild restoration on.
The electrical problems;
#1, When I turn the turn signal in either direction, both turn signals flash along with the rear side marker lights.
#2, No rear brake/tail lights.
While removing the bumpers to start body work, I checked the wiring that I could see. No problems found. The problem was going on BEFORE bumper removal. Any suggestions???
Happy Thankgiving and thanks for the help.