Liftcraft - 1988-1999 GMC Lift Kit K1500 4WD Adjustable 1 to 3 Inch Front Torsion Bar Lift Leveling Keys| Leveling Kit (2PC Black) LIFT: 1-3 inch adjustable front suspension lift over stock FITMENT: 1988 - 1999 GMC K1500 4WD MATERIAL: Made of High Strength Steel, two times the strength of your factory keys INSTALLATION: Bolt-on kit, only takes a couple of hours to install; No modifications required CONTENTS: Carbon Steel Torsion Keys (2) and Detailed Instructions - Liftcraft suspension lift and leveling kits come with a lifetime guarantee and are the easiest, safest, and most affordable way to improve the look of your truck and run bigger tires