It's just a matter of removing the manual window regulators and installing the power regulator in it's place. The doors are usually drilled for all the mounting bolts, it's just a matter of getting everything in place. You'll need the power door panels to, as they have the correct openings for the switches. If your doors have no wiring in them now, you will have to cut the holes in the door and door post to run the wires and fasten the factory conduits which protect the wires, this can be a challenge with the doors on the truck. I would recommend if you are getting these from your friends truck, remove them yourself, so you are familiar with where everything goes and the routing of the wires.