Take your H2 to the next level. Rancho is pleased to introduce the industry's first suspension system for the Hummer H2. Available in red or black finish, and vehicles equipped with coil or air spring rear suspension. Rancho is leading the way with easy installation; precision cut components, the industry's highest quality CNC machined cast nodular iron knuckle, and one piece MIG welded reinforced Subframes. Experience the Rancho difference and uncompromising performance both on-road and off. Rancho is dedicated to offering you the finest engineered, highest quality products. Features Provides an aggressive look by increasing front and rear vehicle height. One piece MIG welded and reinforced subframe (Rancho exclusive). No exhaust modifications necessary. The industry's highest quality CNC machined cast nodular iron knuckle Torsion bar cross-member and front differential drop brackets. Heavy-duty tubular subframe braces with urethane bushings. Allows for use of O.E skid plates. Allows for alignment to OE specs. Allows for the use of larger tires. New extended length progressive rate coil springs maintain factory ride quality (RS6556 only). Aluminum air spring spacers and longer rear height sensor links (RS6557 only). High-strength low-alloy steel construction. Extended front and rear sway bar end links. Factory grade fasteners & hardware. Detailed installation instructions. This kit was developed using a 37" tire on a 17X10 wheel with 5.0" of backspacing. Optional wheel and tire size is a 39.5x15R20 on a 20x9.5" wheel with 6.0" backspacing. Installation of this system does not allow the re-use of O.E. factory wheels. NOTE:SHOCKS NOT INCLUDED!