I recently picked up a 1995 F-Super Duty Cab and Chassis. I also picked up a super clean pick up bed for it. The problem that I have is that when I center the wheels in the wheel opening I have a gap between the cab and box of about 5 inches. I need some ideas of how to fill that gap so it doesn't look so awkward. I was thinking maybe some type of headache rack or making a filler piece?? Any thoughts or pictures would be appreciated.