I have a Fulton 800 or 1000 (I'm not sure) and it don't fit because the center support is for a spilt windscreen. I think that this su Visor is for '48-'54 Chevy pickup.
Does anybody runs also a Fulton and how did you install it?
The Dietrich types made for 1952 up might be the type to look for. They attach to the roof as well as the drip rails but they may fit the F100 better than the F1. There are some photos of repros and some originals on bigjims.net site.