I have an earlier expedition and I fitted 20” F150 wheels, the only issue I had is that on the rear wheels (both sides) the half shafts are a bit longer on the expedition so the threaded end of the half shafts sticks out a bit further and it fouled with the plastic cap that goes in the middle of the wheel. I took an angle grinder and just cut off some of the excess threaded section and everything fitted perfectly. It seems to be a well known issue for anyone fitting F150 wheels to an expedition, the alternative is to not cut the end of the half shaft and don’t use the little plastic cap that goes in the middle of the wheel, but I thought that looked nasty!!