Yes, I raised it by cranking the torsion adjustment bolt. I basically screwed the bolt in. I still have about 1/2" of threaded section on the bolt adjuster. I think the torsion bars are getting soft and twisted over time and causing the front to sit lower. The ride has improved a lot, but I still plan on replacing the 160k miles shocks with factory ones even if my front tires were not even bouncing. I figure, the ride was pretty good with the factory shocks and lasted this long so I am going to use factory shocks. Oh, on my 2011 Silverado, I did some front and rear ride height measurements while it is still newer and wrote it on the service booklet for future reference, so I don't have to ask for original ride height measurements 10 years from now once the ride start getting stiff or soft.