You would have to be crazy to install an HID bulb into your current housing.
Don't take this wrong - It will Work, just fine. but you will have no focal point with the style of housings ford has on their cars. Unless you swap out your headlights for Projectors or auto levelers. - (a good set, not some cheap brand. best proj. would be - Acura TSX/ Honda S2000 retrofit.)
Without projectors, the amount of glare being sent around the road would be dangerous. Maybe not to you, being able to see. But consider how hard it is for you to see when ppl drive by with their high beams on. Now, imagine those high-beams were your 6000-8000k HID's... Yeah.. I know i would have troubles staying in my lane.
to counter the glare, you would need to aim your headlights Far down. possibly to the point of overdriving your headlights in perfect conditions doing 40mph, thus making them pointless.