Sway can result from weak springs, weak shocks, overloaded tires, and frame flexing. The anti-sway bar helps with the frame flexing. Supersprings help with the weak springs. I had minimal sway with my new 2011 GM truck and reduced it even further with new tires that had an extra 650 lb per tire of load capacity so I have less sidewall flexing with the camper load.
I believe in beefing up the stock components but not changing the way they work as with air bags or Sumosprings except as a very last resort. With a new Ford truck I would definitely add as big an anti-sway bar at the rear as I could find. I would not bother with the current Ram or GM trucks that have frames that better resist torsional loading.
Supersprings took me all of an hour to install on my truck. I like something that I can do once and then forget about it, unlike air bags or Sumosprings.
