I have installed a 2" body lift(not in picture) I am going to do a 2" drivetrain lift and gas tank lift. My springs arrived last week 4" (went with AP, wanted marlins but did not want to weld on the front end for the hanger) I think he has a better spring, but would not work for my application. My springs are setting in my garage waiting for the money for a marlin hy-steer. Then I will install it all.