Rough Country - 199.20-3.5-inch Suspension Lift Kit (Factory Cast Steel Control Arm Models) w/Premium N3 Shocks for Chevrolet: 07-16 Silverado 1500 4WD; GMC: 07-16 Sierra 1500 4WD FEATURES: Easy installation; Increased ground clearance; Can be returned to stock; Levels the front with the rear of the vehicle; No need to disassemble your struts to install; Differential drops maintain proper axle angle; Fabricated lift blocks are stronger and offer a longer lifespan than cast blocks; Features application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use NOTES: Requires cutting and grinding; Does not fit models with cast aluminum or stamped steel factory control arms; Does not fit AWD models; Does not fit 2007 "Classic" models; New lift block replaces factory equipped lift block; If truck is equipped with a mass damper on the front differential, the damper must be removed; Retain factory wheels with 0.25-inch wheel spacers (#1065) KIT CONTENTS: Front: Upper strut spacers, differential drop spacers, differential skid plate, and hardware; Rear: 3-inch fabricated lift blocks, u-bolts, and hardware; Shocks: (2) Premium N3 Rear Shocks SPECS: Installation Time: 4-5 hours; Recommended Tire Size: 285/70 R17; Weight: 44.55-lbs; Superseded: 288.20, 269.20, 269S FITMENT: Chevrolet: 07-16 Silverado 1500 4WD; GMC: 07-16 Sierra 1500 4WD Increased ground clearance Can be returned to stock height! Levels the front with the rear No need to disassemble struts to install Easy installation Does <u>NOT</u> fit models with Stock Cast Aluminum control arms - Please use kit 278.20 Does <u>NOT</u> fit AWD or 07 Classic models 2007-2016 Chevrolet 4WD Silverado 1500 Pickup 2007-2016 GMC 4WD Sierra 1500 Pickup Part No: 199.20 Est.Install Time: 4-5 hours Upper strut spacers Differential drop spacers Differential skid plate Hardware 3in fabricated lift blocks U-bolts Hardware (2) Rear Premium N3 series