Lots of great thoughts and opinions on Springs, Stable Loads and Anti Sway Bars....and air bags too.
Just thought I'd chime in that I on my third truck Camper and third Ford 250 or F350 The Anti Sway Bars on the older Ford Trucks were great at reducing or eliminating truck sway. Ford went to the puny little computer designed Anti Sway Bar, in the 2011 through 2015 models. It is a piece of junk. I installed the Hellwig Big Wig Anti Sway Bar and basically eliminated rear end and camper sway. My past two trucks I had installed Firestone Air Bags along with stock Ford Overload Springs and I was never really happy with the air ride for load leveling. On the 2012 F350 with stock overload springs I decided to try the Timbren Suspension System.....I will never go back to air bags. Love the loaded and unloaded ride with Timbrens. I did add the lower Torklift Stable Loads to engage the overloads earlier when the Camper is fully loaded for those extended trips.
Just my two bits worth.
Very Happy Campers,
Gary and Laurii