^This. That door's been flung open a whole lot through it's life.
If it were me and the truck looks pretty decent/paint matches, I'd pull it off and take it to a shop to have it welded back up, then reinstall. It's not fun getting a power door off but it's not the worst job either. Gotta take the plastic kick panel off and find the wiring, once you get the plastic piece off you'll see the metal kick panel/side of the cab. There should be an opening toward the top that you can find the wiring through. I don't remember off hand where exactly the connectors are but they're somewhere down in there or might be just up in the dash.
You must be registered for see images attach