I was talking to a guy at the dealership who saw my car and was interested in buying it until he saw the little black wires going into the top of the strut or shock tower. He said "I didn't know Caddies had the air ride in 1991, my '95 had 'em and when 1 shock went bad, they would not sell me one, Cadillac makes me buy all four!" Total cost 5500 (Canadian dollars of course.) I guess this kinda freaks me out a little. I couldn't afford to fix something like this. It is way overpriced! Why so much? Why would the CCR go bad anyway? Is it just higher mileage cars that might suffer from this problem? Also, what are "passive struts" from other threads, I've seen this term?