Are you positive that the lift gate is Aluminum. I didnt think the Expeditions are using aluminum body panels on the expedition until 16'. the f-150 are the first aluminum bodied trucks out. everything else comes after that. I know my sisters expediton has paint coming off the rear hatch as well and looks like its oxidzed aluminum but think its actually steel. What year is your expedition?
Buschy, the fords, and Rams for that matter have been using aluminum hoods for about 5 years.
