Ford has used at least three different types of fuel filler restrictor plates. And later they didn't put one in at all.
The easiest one to get rid of is a plastic or nylon material. Hole saw or Dremel tool will get rid of it in a hurry. Or simply punch and tear it out with a big screwdriver or some such.
Harder to get rid of is a soft metal restrictor plate. That one requires a hole saw with a metal-cutting blade or a Dremel tool with a metal-cutting blade.
But mine had a very-hard metal plate in there. A hole saw wouldn't touch it. I wore out 3 or 4 Dremal blades before I gave up and found the recip saw with a long bi-metal blade. I sawed that puppy up into several pie slices, then bent the slices down into the neck. Ugly, but effective. And nobody sees the ugly but me. /ubbthreads/images/graemlins/shrug.gif
Since then, I've stopped at truckstops coast to coast, and never had a problem with the big fuel-filler nozzles. Except one time, several years ago. In the back roads of New Jersey there was one truck stop that had huge nozzels that wouldn't even go into the mouth of my filler tube. So I went across the street and filled up. /ubbthreads/images/graemlins/warmsmile.gif