Wheel Lug Nut Torque Specifications
WARNING   WARNING:  When you install a wheel, remove any corrosion, dirt or foreign materials present on the mounting surfaces of the wheel or the surface of the wheel hub, brake drum or brake disc that contacts the wheel. Make sure to secure any fasteners that attach the rotor to the hub so they do not interfere with the mounting surfaces of the wheel. Installing wheels without following these steps can cause the wheel nuts to loosen and the wheel to come off while your vehicle is in motion, resulting in loss of vehicle control, personal injury or death.

Bolt size   Ib-ft (Nm)1  
M14 x 1.5   (19.5 inch wheels)   150 (200)  
M22 x 1.5   (22.5 inch wheels)   450 (610)  

1Torque specifications are for nut and bolt threads free of dirt and rust. Use only Ford recommended replacement fasteners.
On vehicles equipped with dual rear wheels, retighten the wheel lug nuts to the specified torque at 100 miles (160 kilometers), and again at 500 miles (800 kilometers) of new vehicle operation and after any wheel disturbance (such as tire rotation, changing a flat tire, wheel removal).
On all two-piece flat wheel nuts, apply one drop of motor oil between the flat washer and the nut. Do not apply motor oil to the wheel nut threads or the wheel stud threads.
Two Piece Flat Wheel Nut