Dodge 2006 Freightliner Owner's Manual page 238

238 WHAT TO DO IN EMERGENCIES
2. Turn spare wheel holder to loosen.
3. Remove the spare wheel.
Spare Wheel Location for Chassis
1. Loosen thumb nuts by hand and remove.
2. Use wrench to loosen fixing nut to the thread end.
3. Lift spare wheel holder.
4. Turn hooks to the side and lower spare wheel
holder. Remove the spare wheel.