FitmentCompatible for GMC: Sierra 1500 1999 - 20074WD,Classic Body Only Yukon1999 - 20072WD/4WD Yukon XL1500 2000 - 20072WD/4WD compatible for Chevrolet: Compatible for Silverado 1500 1999 - 2007 4WD,Classic Body Only Suburban 1500 2000 - 20072WD/4WD Tahoe2000 - 20072WD/4WD Avalanche 15002002 - 20062WD/4WD compatible for Cadillac: Compatible for Escalade 2002 - 20072WDSpecification- Package Includes: 2x Front Shock Extender 2x Front Torsion Bar Key As the pictures shown No instruction included. - Lift Height: Front 1\'\'-3\'\' adjustable ONLY works if truck has 6-Lug Bolt Patter - Forged Steel Torsion Keys - Gloss Black Shock Extenders - Front shock extensions allow you to retain the use of the stock shocks - Professional Installation in Highly Recommended - Please do not hesitate to contact us for anything we can helpNote* Please check our store for other auto parts you may be interested in. * Please feel free to contact us for whatever we can help.