I pulled the switch out and took it apart. Not bad to work on, kind of gritty and dirty inside so I cleaned it up real good. I noticed there are some worn grooves where the brass plate with the dimples in it rubs across the contacts. Put it back together and no change. Not sure what makes that exterior bar with the contact on the end engage with the corresponding contact on the end plate. If I manually make the two contacts meet, I have power to the terminals.
I think at this point I will just pickup the switch Denny linked. Last thing I want to do when I eventiually get this truck back together is have blinky lights, or worse, no lights.
Thanks all for your help.