Id like to know , if instead of dealing with trying to figure out why my air suspension is not working in the rear, can i do this? I had 2 guys call me and tell me to just use these shocks, and go put air in them, instead of trying to figure out if its the cadillac air bags, compressor, sensors, bla bla bla. He told me he would install them for 100 bucks, and the shocks should cost about 100 for the rear. Can this be done?