Rough Country - 212-3.25-inch Suspension & Body Lift Combo Kit (Factory Cast Steel Control Arm Models) for Chevrolet: 14-15 Silverado 1500 4WD/2WD; GMC: 14-15 Sierra 1500 4WD/2WD FEATURES: Easy installation; Maintains factory ride quality; Increased ground clearance; Levels the front with the rear of the vehicle; No need to disassemble your struts to install; Body Lift provides 1.25-inch lift, as opposed to the standard 1-inch; Body Lift includes front bumper brackets; Rear bumper is relocated using factory brackets; Fits both standard cab and 4-door models; Body lift pucks are made from fiberglass reinforced nylon for superior strength NOTES: Fits cast steel factory control arm models only; Does not fit cast aluminum or stamped steel factory control arm models KIT CONTENTS: Front: Lower strut mount extensions and hardware; Body Lift: 1.25-inch body lift pucks, front bumper brackets, ground strap bracket, and hardware SPECS: Installation Time: 2-3 hours; Backspacing: Factory; Recommended Tire Size: 285/75 R17; Weight: 37.75-lbs FITMENT: Chevrolet: 14-15 Silverado 1500 4WD/2WD; GMC: 14-15 Sierra 1500 4WD/2WD