I run my Air Lifts at 11psi unloaded on my 2011 F350. When loaded I like playing with the wireless remote and adjusting the psi. I now run it around 50-60psi and like the ride. Dont even know its behind towing it. Recently installed new Rancho 9000XL adjustable shocks and now will have to recalculate as I have not towed with the new shocks. Instead of the washer/dryer in the front space I have a bachelor deep freeze there which works great.
2014 Sierra 365SAQ
2011 Ford F350 King Ranch 6.7L Air Lift LoadLifter 5000, Air Lift WirelessONE, Reese Elite 18K w Fifth wheel Prep Package, H&S Mini Maxx