HeavyMetal - Suspension Lift Kit 3" Adjustable Front Lift Torsion Keys Chevy Silverado 1500 4x4 DETAILS: Adjustable 1 to 3 Inch Front Lift APPLICATIONS: 1997 - 2007 Chevrolet Silverado 1500 6-lug (4WD) PACKAGE CONTENTS: (x2) Carbon Steel Adjustable Torsion Keys and Installation Instructions TIME FRAME: Installs In Approximately 1 - 3 Hours. Heavy Metal Suspensions products are the safest way to lift your vehicle without compromising ride quality. CNC constructed with computer programmed pulse welds, Heavy Metal high-grade steel is guaranteed never to break under even the toughest conditions. Each kit comes complete with installation instructions and ASE certified telephone support.