Introduction: This set of leveling kit includes a front torsion key, front shock extender,rear shock extender and 2 inch rear spring spacer which offer a front lift of 1-3 inches, and a rear lift of 2 inches with bolt-on easy installation. Both lifts and leveling kits are designed to raise the truck body away from the axles to fit larger tires and increase ground clearance. A leveling kit involves hardware to slightly raise the front of the vehicle so it matches the stock height in the back. Application : fit for Chevy Avalanche 2002-2006 6-Lug 2WD 4WD fit for Chevy Suburban 1500 2000-2006 6-Lug 2WD 4WD fit for Chevy Tahoe 2000-2006 6-Lug 2WD 4WD .