Professional install required on all lift kits for proper setup and safety. Fitment Information GMC Sierra 1500 4WD (2007, 2008, 2009, 2010, 2011, 2012, 2013) Note: Requires minor cutting and drilling. Does NOT fit 2007 "Classic" models. Does NOT fit models with electric steering. Does NOT fit AWD models. 18" or larger wheels are required. Please view installation instructions for complete information on proper tire/wheel combinations. Specs & Features Can run 35" tires on factory 20" wheels. Provides highly sought level stance. High clearance crossmember design gives unmatched ground clearance. Requires no modification to the stock differential mounts, drivetrain or exhaust. 100% precision laser cut materials using the latest computer aided design process. No need to disassemble your struts to install. Specially designed anti-axle wrap rear blocks maintain stock ride quality while eliminating common lift block problem. Fabricated blocks are stronger and offer a longer lifespan than cast blocks. Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use. N3 Loaded Struts: Includes pre-loaded coil Maintains smooth, factory-like ride Increased ground clearance Engineered for lifted applications Infinitely Variable Damping Leak-proof piston seal Massive 1 3/8in Bore Silver powder coat finish V2 Monotube Shocks: Monotube design Internal floating piston Nitrogen-charged 46mm high-flow piston Fast heat dissipation 36kN Tensile Strength Mounts inverted T6061 brushed aluminum body Vertex Coilovers: 8-Stage Adjustable Damping Monotube Design Nitrogen-charged Massive 2.5in Piston 22mm Chrome-Hardened Piston Rod 3-Stage Seal System Heat-Treated, Alloy Bearing Honed Steel Body In the Box Front: Lifted knuckles Front crossmember Rear crossmember Upper strut spacers Brake line brackets CV spacers Differential drop brackets Differential skid plate Sway-bar drop brackets Hardware Rear: 7in fabricated lift blocks U-bolts Hardware Product Description Gain ride height at an incredible value with Rough Country's 7.5-inch Suspension Lift for '07 - '13 Chevy / GMC 1500 Pickup. This massive lift affords your truck the ability to run up to an impressive 35-inch tire on factory wheels with our unmatched front and rear high-clearance crossmembers featuring the "RC" logo. Heavy duty upper strut spacers, a beefy lower skid plate, and a set of differential and sway-bar drop brackets are also included; designed by our in-house Research and Development team with 100% laser-cut materials for the best possible fit on your vehicle. This whopping 7.5-inch Lift also comes with a set of rear 6.5-inch fabricated anti-wrap lift blocks that offer a huge boost while helping combat dreaded axle wrap issues on inferior big lifts. Give your pickup a level stance easily, with no modification to the stock differential mounts, drivetrain or exhaust required to install! Redline360 sells only genuine and authentic Rough Country products.