You can use a single filament bulb and socket if you just want turn, no park.
Otherwise you need dual filament bulb and sockets.
The wiring for the dual is:
1. Wire from turn sig switch to left lamp turn filament.
2. Wire from turn sig switch to right lamp turn filament.
3. Wire from light switch to Park left filament.
4. Jumper wire from left park filament to right park filament.
They are routed down the left inner fender. Then some cross over on the radiator support to right side.
You can wire the park function to be only on with light knob half way pulled out and also stay on with headlights. Full pull out.
The boots fit over the lamp socket tail, or lamp housing lip. The rear of the boot is loose. Oriented in a sensible position.
We don't know what exactly painless gave you for this. Follow their instructions and my list. If not sure of the wiring, post more questions. Glad to help, but don't ask us why Painless did something.
Dual filament means two filaments inside one bulb. Each filament has it's own contact and wire. So that's what my list is talking about.
The grounding is equally important and is done by bulb case touching socket, socket touching housing, housing screwed to fender, fender/body sheet metal/frame/motor eventually touching the batter negative post using braided straps along the way. Up to you to build and maintain this path.
