Originally Posted by Too Tall
This will be controversial but, IMO if you need sway control, you probably don't have enough truck.
That's sorta true. But the trailer can still sway with a bigger truck. It just won't affect the truck as much. If the sway becomes out of control then the truck size won't matter.
I towed the same TT (31', 7300lbs) with a 1/2 ton and a 3/4 ton. With the 1/2 ton I needed every trick to have a stable tow. With the 3/4 ton all I used was a standard EAZ-Lift WD. No sway control added. Trailer still had the push pull in winds or when passing semis side by side. But the truck was rock solid.
Side winds would move the 1/2 truck and TT around some, not so with the 3/4 ton.
Makes me wonder how the new lighter aluminum bodied F150s will do when hitched up to a 7000lb 30'+ TT. Everyone knows that the heavier the tow vehicle the more stable the tow.