Gain increased ground clearance and killer, good looks with Rough CountryCOs 3.5in Suspension Lift for GMC Sierra Denali 1500 Pickups equipped with Magnetic Ride Control.This all-inclusive kit comes with several fantastic features - all at a price that'll leave plenty of room for new tires and wheels! Rough CountryCOs 3.5in Denali MagneRide lift comes equipped with a set of differential drop spacers, 3in fabricated rear blocks, and a protective differential skid plate for enhanced durability.This kit also features upper control arms with upgraded Ball Joints by MOOG, the most trusted name in Ball Joint design. Easy to install and easier to maintain than any other joint on the market, the Moog Ball Joint system utilizes two powdered-metal gusher bearings with grease grooves to provide the most durable wear surface available. A sealed boot design with grease-relief valve keeps contaminants out while providing a sealed, serviceable environment. Also included in this kit are a set of fabricated rear blocks. Fabricated blocks are stronger and offer a longer lifespan than cast blocks while being less susceptible to damage and the environment.