Level the front end of your GM 2500HD/3500/3500HD truck with the rear by installing a Tuff Country EZ-Ride Suspension leveling kit. These easy to install replacement torsion bar keys are designed to level trucks equipped with factory torsion bars. Designed to reindex the stock torsion bars which levels the GM 2500HD/3500/3500HD truck without cranking up the factory torsion bars.Details: 2 Inch Front Leveling Kit (w/ SX8000 Shocks) Level the front of your GM truck with the rear Constructed of high quality steel Bolt-on installation New shocks included, includes front shock relocating brackets No need to crank up torsion bars Proudly Made in the USA - (many other brands are not) Backed by the Tuff Country Lifetime Warranty Sold As A Kit Fits: 2001-2010 Chevrolet Silverado 2500HD 4WD/2WD 2001-2010 Chevrolet Silverado 3500/3500HD 4WD/2WD 2001-2010 GMC Sierra 2500HD 4WD/2WD 2001-2010 GMC Sierra 3500/3500HD 4WD/2WD Installation Notes: Once installed torsion bar keys (regardless of brand) can result in a harsher ride New extended shocks are included Tuff Country Torsion bar keys are designed to install with a stock suspension only. Do not use with other types of lift kits. Will void warranty. All Chevy/GMC factory torsion bar keys are marked with a color code in paint on the key If your vehicle is marked in Green, Orange, or White marked factory torsion bars, use P/N 12904 If your vehicle is marked in Blue, Brown, Purple, or Yellow, use P/N 12944