changed one this past weekend. not to bad, watch how you take the grommet out (might as well change it too) and i dont car what they say you will have to drop the tank to do it! for some reason ford zip tied (yep factory zip ties on a filler neck) some plastic around the neck so it can collect dirt and rust out, how nice of them to do that for me!

tools we needed are a 15T for the fuel door and rubber bumpers, a 8mm (i used a 5/16th) for the bolts on the neck in the trunk and behind the fuel door and a 1/2 on a long ext. for the tank bolts, and a little lube for the grommet. easy peasy. took us about two hours with a small pee break.