Be careful when removing the plugs. They can crack. As for installation, do NOT over torque the plugs. They should go until they stop, then a sitxteenth of a rotation. Our plugs have seats on them; they are not tapered threads. When reattaching the plug wires, they should go on until they click.
BTW, do you need a set of plugs? I have a spare set of Motorcraft ASGF32FM plugs that only have about 3K in them. I went to colder copper plugs, and don't need these. I will sell them to you cheap.