Loading... Please wait...2" - 3" Front Leveling/Lift Keys. These Lift keys will provide 2" to 3" of lift with no adverse effects on ride quality, if used reasonably, and not "over-cranked." They are indexed differently than stock keys, to provide optimum lift. This kit will allow you to clear 33" tires, and with some trimming, you can run 35" tires on stock wheels. This kit works on the following vehicles: -2007-2010 Chevy Silverado 4x4/4x2 1500HD/2500/2500HD/3500HD- -2007-2010 GMC Sierra 4x4/4x2 1500HD/2500/2500HD/3500HD- -2007-2010 Chevy Suburban 4x4/4x2 2500- -2007-2010 GMC Yukon XL 4x4/4x2 2500--2007-2010 Avalanche 4x4/4x2 2500-NOTE: Typical install times for this kit, are about 1.5hrs with ease, using a GM torsion bar tool or ball joint tool. Stock shocks WILL work with this kit but we recommend extended length shocks when lifting a vehicle. Detailed Instructions and as always, Free Technical support should you need us. GET YOURS TODAY!!!