The wheel mounting surface of the axle flange may be warped and cause the wheel studs to fracture.
Fractured studs may allow the wheel to detach, increasing the risk of crash.
What to do
Dealers will inspect and -- if necessary -- replace the rear axle shaft assembly axle shaft mounting bolts and rear wheel lug nuts free of charge.
Owner notification letters are expected to be mailed June 21, 2021.
Owners may contact Ford customer service at (866) 436-7332. Ford's number for this recall is 21S21.