New turn signal switch light switch new wiring from pigtail on bumber back to lights?

Use a VOM to trace the wires. Check voltage through the brake light switch. Make sure fuses are good. Based on what you posted, you are possibly missing a ground wire. That is why tracing a wire is important. It is either no voltage to a switch or no voltage at the lights. If you have 12V at the brake light switch and no brake lights, you either have a bad wire, you said you replaced them, or a bad ground. I doubt all the bulbs are bad.

Thanks come to find out it waz broken wire on frame an combinationof bad conne ction on fuse block

I believe on that truck Turn and stop are the same filament, odd Turn, works but not brake? Sockets on those would lose ground first(what I usually saw)
Good ma0641 got it.
If I remember, that Tail Light is the same on Wagons, Pickups and Vans?