Heavy Metal Suspensions - 2006-2010 Hummer H3 (4WD) 2" Rear Shackles High Strength Carbon Steel Lift Kit DETAILS: 2" Rear Lift APPLICATIONS: 2006-2010 Hummer H3 (4WD) PACKAGE CONTENTS: (x2) Carbon Steel Adjustable Rear Lift Shackles and Installation Notes TIME FRAME: Installs In Approximately 1 - 2 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.