FORD 2013 F-550 v.1 - Manual (Page 380)

4. Be sure to install all the clips on the nuts over the flanges so that
there is an even gap all around and the retention clips are fully seated.
Stowing the flat/spare tire
Note: Failure to follow spare tire stowage instructions may result in
failure of cable or loss of spare tire.
Note: If you are stowing a tire that requires reattaching it to the vehicle
with a tether, perform these steps first, then proceed with the steps
following.
1. Place the tire on end with the
valve stem facing toward the front
of the vehicle.
2. Place the tether into the bolt
holes in the wheel and attach the
lug nut using the lug winch.
Wheels and Tires 379
2013 F-250/350/450/550 (f23)
Owners Guide gf, 1st Printing
USA (fus)