The fender on the F-1 up to F-6 are the same width. The wheel openings on the F-1 fenders are smaller than the larger trucks. F-2 through F-6 used the same fenders. F-7 and F-8 have wider fenders but IMO look goofy wide on a smaller truck. Also, you would have to use the entire front clip of the F-7/F-8 because the grill is wider and the fenders are longer which makes the filler piece above the grill stick out farther forward.

I'm no expert on the Crown Vic front suspension and don't know it's limitations or dimensions, I'm just thinking since it's a somewhat of a luxury car it would be too soft and not strong enough to be able to handle any kind of a work load. I don't know.

Check out this page on my web site:

Body Part Interchange Guide