Generally tall tires with those tall side walls like a 290/75 can exhibit more carcass roll than tires with shorter sidewalls.
Now add a tall top heavy load like a TC and a trailer pushing the back of the truck around can make a ill handling vehicle.
Yeah I know...everyone has their idea of what is a bad handling truck or truck/trailer combo.
I went through that when 16.5" tires were the norm on our trucks. Maybe some one has experience with todays newer gen low profile 18" and 20" tires.
I see on fleet fords website their OEM 20" wheels have the same 3590 lbs capacity as the OEM 18" wheels. Check out 20" LT tires and see if capacity and maybe shorter sidewall height than 18" tires.