Best rear suspension option?

[Regcabguy]

With Sage offering Superduty suspension now, LT's for the Ford's may be on the horizon. They're a huge improvement over Firestone's if you've got minipaks/custom leafs in the rear.

 

[Buliwyf]

Looks like Carli has long travel airbags for Ford and Dodge now. Cut off the bumpstop ledge form the rear blocks, drill the frame, weld the lower mount to the axle. Not the easiest kit out there.

http://www.thecarlisuspension.com/ford-super-duty/components/longtravelairbags.html

Maybe National Springs set to just barely handle your weight fully loaded and airsprings are the ticket. (for when you're loaded and towing) It looks like you can remove the air springs with 4 bolts and a tug on an air line. Any airspring I run, will be removed for trips where they aren't needed.

I'd imagine that the National Spring setup by itsself won't be any worse unloaded, than the truck was stock unloaded.