FLIP up/down air dam for F-series

do exactly the same air dam as on the Ford atlas concept truck. with the air dam of all trucks being so low it makes ground clearence an issue when off roading or getting to work, [if you work on a job site or oil rig]. i do get however that this is what creates way better fuel milage, but at least have a flip up/down air dam that stays up until around 50kmh and stay up all the time when in 4x4, then after 4x4 is disengaged and highway speed are reached it would flip down to divert the air around the truck. this is also a great look to the truck when up, it makes it look way tougher looking as there is no plastic showing and just the solid front bumper, this should be available for all F-series pickups.