Frank, are you talking about a Texas wing, like Mel Agne has on his wife's "Lady Moose" F350? Is your F250 a crew cab or at least extended cab, and also converted to a dually rear axle? Cause that's about the only way you can pull it off for good looks. Also, those wings are a bear on the already bad aerodynamics, unless you pull a big enclosed trailer all the time you're only going to mess up your fuel economy...