I have found a way to lift a Colorado 3". I dont know all the models that it will work on, but I do know that it works on the z71 2wd. What you have to do is for the front, all you do is crank up the torsion bars and get a front end alignment. In the rear you need to get your local spring shop to bend your leaf springs enough to give you 3". Any ?'s or comments e-mail me at
grassruts311@hotmail.com