Rough Country - 272N2 - 6" Suspension Lift Kit FITMENT: Chevrolet: 99-06 Silverado 1500 4WD; GMC: 99-06 Sierra 1500 4WD KIT CONTENTS: Front: Lifted knuckles, differential drop brackets, front and rear drop crossmembers, skid plate, sway bar links, CV spacers, and non torsion bar drop brackets; Rear: 6.25-inch fabricated anti-wrap lift blocks and u-bolts; Shocks: (4) Premium N2.0 Shocks BENEFITS: Maintains factory ride quality; Will work with Auto Trac; Unmatched ground clearance; Torsion bars stay in factory location; Newly Redesigned; Easier Installation; Axles maintain factory position and angle; No drivetrain or exhaust modifications required; Designed to reuse factory compression travel stop; Specially designed anti-axle wrap rear blocks maintain stock ride quality while eliminating common lift block problem TECHNICAL NOTES: Does not fit HD models; Does not fit 1999 "Classic" models; Frame bracket modification required; Models equipped with factory painted bumpers will require trmming to valance and bumper; If equipped with factory 17-inch wheels, 17-inch or larger aftermarket wheels must be used; Fabricated block replaces factory rear block; Torsion bar unloading tool required for installation (#1067) ITEM SPECIFICS: Installation Time: 8-10 hours; Backspacing: 4.5-inches; Recommended Tire Size: 35-by-12.50; Weight: 203.56-lbs; Superseded: 27220A, 272N2, 272X