Beautiful Mark!:thumbsup:
My green 94 was jacked up in the rear like that when I bought it. It was caused by a froze up vent valve (part of the compressor assembly). It was frozen from rust, but that can happen with ice too.
If you're handy with electrics, you can test it electrically at the air ride module connector. See here for the pin numbers and wire colors:
http://www.lincolnsofdistinction.or...troubleshooting-and-forcing-system-to-inflate
First check that the solenoid valves in the rear airsprings work. Make sure you hear the click when you apply the voltage to them. They rarely fail, although I've had to repair a bad wire to one of mine.
Then, check that the vent valve in the compressor works. you should hear a good solid click there also.
If they all click, try them all together, they should allow the rear airsprings to vent, if so, let it vent to ride height. If not, there might be blockage at the vent valve or drier, that is connected to the vent valve.