Heavy Metal Suspensions - 1988-1999 GMC K2500 and K3500 (4WD) 1" to 3" Front Torsion Keys + 2" Rear Blocks + Extended U-Bolts + Shock Extenders + Rear Axle Shims Steel Lift Kit DETAILS: Adjustable 1 to 3 Inch Front and 2 Inch Rear Lift APPLICATIONS: 1988 - 1999 GMC K2500 (4WD) and 1988 - 1999 GMC K3500 (4WD) PACKAGE CONTENTS: (x2) Carbon Steel Front Torsion Keys, (x2) Cabon Steel Rear Lift Blocks, (x4) Extended Plated U-Bolts, (x2) Carbon Steel Shock Extenders, (x2) 6061-T6 Billet Aluminum Rear Axle Shims, Hardware and Installation Instructions. Note: Kit Does NOT Include A Torsion Bar Unloading Tool TIME FRAME: Installs In Approximately 2 - 5 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, high-grade hardware and ASE certified telephone support.