Thanks to everyone who helped me out with this. I traded email and phone calls. I used the help of my local mechanic because the weather was snowy and icy here, and since I would have had to do this without shelter (long story), it made sense. He told me that the EAS over-ride device didn't come with much instruction, which I noticed to be true, and the installation is not obvious. The Arnott Industries equipment is great. I would recommend them to anyone, but research the installation of the EAS over ride device. Installation of this equipment is not difficult if you are reasonably handy, but you will need to lift the entire axle on both ends - not just one wheel at a time. I am relieved that I never have to screw around with my air bags again - this is the fourth set of suspensions on this rig at 100K miles.