Just another opinion,
I don't claim to be an expert on trucks or trailers. And I know some folks like Fords or Chevy or etc. or diesels or gas or etc. But I have a 2015 Lance 1985 (dry weight 3925#/GVWR 5700#) and my TV is a 2013 F150 4x4 supercab (3.7EB 6 cyl.). No problems pulling my rig. That includes hills, highways, etc. I'm probably around 10 to 13/gal when towing. It came with built-in sway control. The vehicle will sense any sway and alternate pumping brakes left and right to correct. However I can't say that I have noticed any sway or correction.