Will they fit?

I think the crown vic cop car steelies are 17". A member here uses them on a Duster and painted them up to look like Mopar Rallyes, he even used the Rallye centers. they look sharp!
Just remember the center register is different so the rotor snout will have to be machined in the front and axle centers turned down out back, unless you get axles with the ford sized centers or just use spacers. -pauly