2011-UP GM HD 3.5" Tubular Arm SST Lift Kit w/o shocks.. Max Lift: 3.5"F/1.0"R - Max Tire: 34" NOTE: Single Rear Wheel Only Not for use on trucks equipped with factory TOP overload spring commonly referred to as a camper package. Requires the use of longer front shocks. Shocks not included with kit 69-3411.Solid Mount and even load distribution Forged Torsion Keys w shock extensions OEM Style Cast Blocks Will not deform or change shape No Cutting of OEM Parts or Welding Maintains Factory Ride If it needs it‚¬¦ Its in the box