Off Road Unlimited now offers an application for 1999-2005 GM 1/2-ton 4WD pickups and SUVs. The GM 1500 2" Leveling Kit combines torsion bar cogs with extended-length Bilstein 5100 series high-pressure monotube shocks. The system uses special torsion-bar adjuster cogs that are re-indexed to level the vehicle without compromising suspension performance. Installation is straightforward and can be accomplished in less than two hours (excluding the required professional alignment).