:icon_ford: I just bought a 2001 F350 SuperDuty Crew Cab, full size bed, 4x4 with duallys Its in MINT condition. It was built for hauling boats, like 40 footers. So anyways It has rear leafs but only half (the front half). It has air bags about 10" behind the axle. The deal is you drop the air bags down and align your ball hitch and hit the switch and the rear goes up so you don't have to crank the boat up and down to death. I've never seen this set up before and If anyone knows of a rear airbag system that you chop off your rear half of the springs and hook them up to an airbag, please help me find a website so i can figure them out. They do work great, but I want to know what they are. I can't pick up the truck til monday so i don't have a photo yet.