Rough Country 29730 6-inch Suspension Lift Kit with Shocks for 01-10 Chevy/GMC Silverado/Sierra 2500 HD Features: Maintains factory ride quality; Increased ground clearance; Designed to run 35x12.50 tires; One-piece quality cast CNC machined knuckles; Integrated skid plate does not sacrifice ground clearance; Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use. Notes: Requires minor modification to the front differential; If equipped with factory 17-inch wheels and purchasing new wheels - the new wheels must be 17-inch or larger.; Use of a 35 x 12.50 tire may require modification to the front valance.; If equipped with a gas engine, then an exhaust reroute modification may be needed for front driveshaft clearance.; Torsion bar unloading tool required for installation. Available below (#1067) Kit Contents: FRONT: Lifted knuckles; Front crossmember; Rear crossmember; Differential drop brackets; Lower integrated HD skid plate; CV spacers; Sway-bar links; Hardware; REAR: Lifted blocks; U-bolts; Hardware; SHOCKS: (4) Premium N3 series; Specs: SKU: 29730; Install Time:6 - 8 hours Fitment: 2001-2010 4WD Chevrolet 2500 HD Pickup;2001-2010 4WD GMC 2500 HD Pickup