Improves the look of your truck and increases ground clearance, so you can fit larger tires. Higher than as strong as factory keys and indexed to lift your truck according to your preference, anywhere from 1 to 3 inches. The included shocks will help maintain proper vehicle handling dynamics with the higher than factory center of gravity, while still maintaining a factory like ride quality. For Chevy Avalanche 1500 2WD 4WD 6-LUG 2002-2006 For Chevy Suburban 1500 2WD 4WD 6-LUG 2000-2006 For Chevy Tahoe 2WD 4WD 6-LUG 2000-2006 For GMC Yukon 1500 2WD 4WD 6-LUG 2000-2006 For GMC Yukon XL 1500 2WD 4WD 6-LUG 2000-2006.