We need your trucks year model....GVWR....RAWR...engine size.......gear ratio. Without these we can only guess.
Ford markets around 15 different gvwr packages from a measly 6500 on up to 8200 lbs.
And about 5 different RAWR packages fron a tiny 3300 lbs up to 4800 lbs.
The trailer shows to have a 7500 gvwr and a 5215 dry weight. There are some F150 that can tow that size trailers and some don't have the rawr to carry all the weight on the rear axle/in the bed.