F150 towing

Hey guys I have a 2014 f150 5.0 3.55s 4x4 Crewcab

This doesn't tell us what '14 F150 you have.....and it makes a huge difference.

F15o has 19 different GVWRs from 6000 on up to 8200 lbs
F150 has 5 different RAWR from 3300 up to 4800 lbs.

Sooo...what is your trucks GVWR and more importantly what is its RAWR as its going to be carrying all the load back there.
Payload sticker number doesn't tell us how much load the truck can carry in the bed.