Softest suspension set up

[Superblazin]

What's the best/softest suspension set up. Maintaining close to stock ride height, clear 35's? I don't tow much weight mainly street driven and want a Cadillac ride.
2005 f350

 

[ToMang07]

I bet you'd like 30mpg, too!

 

[jacobdewey]

Look into the Carli Commuter system.

 

[jacobdewey]

http://www.carlisuspension.com/ford-super-duty/suspension/lvl-commuter20.html

There you go.