We have pretty close to the same rig.
Mine is a 2008 CF26RK. It measures 11 ft. 8 in. to the top of the AC.
You can check yours out by going up on the roof with a four foot level and a stick taped to it long enough to reach over the edge. Place it on top of the AC.
You will need some body on the ground. Keeping the level - level Hook a tape measure on the end of the stick and measure distance to the ground.
2008 Cruiser CF26RK
2013 Ford Eco-Boost
Heavy duty payload - Max tow
You should measure yours, there are too many different variables, brand of truck, brand of hitch, trailer tires, truck tires, hitch settings, air bags on the truck, even different king pins, just to CYA!