2007-2014 TUNDRA 2WD / 4WD Maxtrac offers up rear lifting shackles as an alternative to the regular steel blocks and u-bolt combination. These shackles give a minor lift in the rear, depending on appplication, anywhere from 1/2" to 1.5". Not only are these easier to install than blocks, they can be combined together to get additional lift, or to fine tune the ride height in the rear. Constructed of solid steel, urethane bushings, and powder coated in gunmetal, nothing matches our leveling kits better. SPECIFICATIONS 100% Bolt On Installation Maintains factory ride quality Levels the rear with the front of the truck Urethane Bushings for less binding DIMENSIONS: 9x4x3