All I gotta say about them is wow. If anyone has been on the fence about buying them, get them. My truck until today had the factory shocks (91,700 miles on them). Going down the road the thing wanted to wander and follow any grooves in the road. It also bounced all over on the road as soon as you hit bumps. Now on setting 3 the truck rides 100% better. In setting 9 and empty it rides a little like it used to (like a tank). Now if some of you were lucky you ordered them before Oct 31 you could have gotten an extra little goodie from Rancho