I have been trying to find a set of locking nuts for my 16 and no one either makes them or looks at me crazy. Ford offers one set, and they are so long they stick out on the front wheels like the old game "Spy Hunter". The rears is almost tolerable. I had a set from my 15 GT but they are the smaller one's and the shoulders don't look big enough. What the hell am I missing here? Factory wheels, nothing crazy at all, just trying to put a lock on my damn wheels.