I bought a '92 Chevy 1500 short bed that has been lowered. 2" front, 4" rear. The rear axel was remounted to the top of the leaf springs. The front has new spindles and coils and the coils have been shimmed to achieve a good ride height. The rear setup has a set of air bags (load levelers) placed directly between the leaf spring and the frame immediately behind the axle. I need to inflate the bags to 17 lbs. of pressure to hold the rear high enough to prevent bottoming out the rear suspension under normal driving. It makes the rear very stiff and results in a jarring ride over mildly uneven pavement. I'd like to find a solution that will produce a less stiff rear suspension. I was thinking of changing the shackles to a shorter type to raise the body but cannot because they are already quite short. The shackles mount above the rear frame cross member in what I believe is the stock mounting position. I was thinking of having the leaf springs re-arched to give me an additional inch of height and allow me to relax the air bags but I'm not sure if re-arching damages or weakens the springs. I'd like to know if there is a better way to lift the rear end of the truck? I would like to keep the air bags because I doo use the truck to haul stuff every so often.