As T & RB already stated, I went with a hybrid set up --- OEM bags and struts, but aftermarket control systems. I needed the ability of the on-the-fly adjustment for the stupid winters we get. I basically pieced together my own kit....and it involves some fabrication work to mount the 4 aftermarket ride height sensors & arms, in addition to all the wiring and line running. The system I have is from Dakota Digital, and it allows me the to have 3 preset ride heights (to any height I specify), but can also control it manually. It pretty much mimics the functionality of the 4.8is system, but also has different key-on modes you can set....I think dakota digital has some pretty detailed pdf docs on it you can read right from their site if you're interested.

IMO, people have a natural prejudice against air suspension simply because it's "one more thing to go wrong", and unfairly expect it to preform flawlessly as if it were a coil set-up....despite being miles more complex.

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