I would like to replace the small rear quarter panels on the back of my Expedition. They seem to be held in by two screws. I did locate an Expedition at a local junk yard that has the same year and color. My question is, do these come off easily? Is it as easy as taking off two screws? I've highlighted the part in the photo.

 

Those are just part of your rear bumper cover and you will have to remove the entire cover. Once you have the rear cover off you will see the fasteners holding them to the bottom cover. Should only take 45min or so do the whole job. Good luck.