After 11 years and 120k miles I finally wore out the shocks. Those Nivomats take a beatin though. I was having my tires changed and noticed one of them leaking oil. By the time I got to my mechanic they started dumpin oil all over the ground. Glad I made it there in time. Got them replaced for about $650 including labor. Noticeable difference in ride immediately. Had to adjust my mirrors since the back was lifted about an inch. The others must have really been shot.