YUP! I have a 66 Chevy C-20 with a factory flatbed. It uses the same tail light assemblies as the stepside. Every thing is metal to metal with huge contact surfaces. I couldn't get the passenger side to work. I drilled a small hole in the back of the housing, shot a sheetmetal screw into it through a crimp on eye to a 14ga copper wire, did the same thing to the frame on the other end. Has worked ever since. 6 months later drivers side was pulling the same crap. Did it all over again on that side. Not a problem since. Now this is my rusty daily driver/work truck. It would be an ugly fix on a resto.