Latest torque spec seems to be around 80-85 ft-lbs. I use 80 now. Haynes manual says 62, but that's either for the steelies, or it's an early spec that's been updated by a Ford service bulletin.
Just checked my new wheels tonight after about 180 miles. 3 of 4 wheels needed a slight nudge to get back up to 80 ft-lbs. The 4th was taken off since the initial install to fix a leaky tire, and then re-installed by the shop. It was tight at least to 80, but I'm not sure what the shop used.
