This NTD kit is easier to install, handles better than ever, and looks killer from any angle. Gain greater clearance, better handling, and the cleanest looking 4 in. lift available! A set of lifted front knuckles and 5 in. rear blocks allow your 1500 to run up to 33 in. tires, while a full set of drop crossmembers, differential drop brackets and non torsion bar drop brackets keep everything tucked, hidden, and at optimum angles. This fully loaded suspension lift also includes a set of (4) Premium N3 Shocks, front CV spacers, sway-bar links, and a protective skid plate to give you everything you need to get rolling in one of our best kits, at a great price.Features and BenefitsTorsion Bars Stay In Factory LocationRedesigned For Easier InstallationMaintains Factory Ride QualityApplicable With Auto Trac Equipped ModelsUnmatched Ground ClearanceAxles Maintain Factory Position And AngleNo Drivetrain Or Exhaust Modifications RequiredDesigned To Reuse Factory Compression Travel StopsIncludes Application Valved N3 Series Shock AbsorbersApplication Summary2007 GMC Sierra 1500 Classic SL SLT WT SLE Hybrid Denali (Liter: 4.3, 4.8, 5.3, 6.0 & Engine(cc): 5328, 5967 & Engine(ci): 262, 294, 325, 364 & Cylinder: 6, 8 & Block: V & Bore(in): 4.00, 3.78 & Bore(mm): 101.6, 96.0 & Stroke(in): 3.48, 3.27, 3.62 & Stroke(mm): 88.4, 83.0, 92.0 & Drive: 4WD / Note: 4 in.; Lifted Knuckles; Front/Rear Cross Member; Non-Torsion Bar; Drop Brackets; Sway-Bar Links; Skid Plate1999-2006 GMC Sierra 1500 SLT SLE SL C3 WT Denali Base HT Hybrid (Liter: 4.3, 4.8, 5.3, 6.0 & Engine(cc): 5328, 5967 & Engine(ci): 262, 294, 325, 364 & Cylinder: 6, 8 & Block: V & Bore(in): 4.00, 3.78 & Bore(mm): 101.6, 96.0 & Stroke(in): 3.48, 3.27, 3.62 & Stroke(mm): 88.4, 83.0, 92.0 & Drive: 4WD / Note: 4 in.; Lifted Knuckles; Front/Rear Cross Member; Non-Torsion Bar; Drop Brackets; Sway-Bar Links; Skid Plate)