Well, I ran a ground wire direct to the left taillight housing and now I have all my lights again. I did have to reclean the socket terminal buttons again as I still couldn't get the bulb to light up. after sanding it shiny or rough, I reinserted the bulb and got it to work consistently.
I don't have a junction block at the rear of the bed as the wiring was messed with by the PO
so I think Ill need to get one. Anyone know where to obtain one from? Thanks again for all your advice. This is a great website.
Steve.