Liftcraft - 2007 - 2018 Tundra Differential Drop Kit Including Bolts 4WD Toyota Models FITMENT: 2007-2018 Toyota Tundra 4WD models MATERIAL: CNC machined from solid aluminum blocks INSTALLATION: Bolt-on kit, only takes a couple of hours to install; No modifications required CONTENTS: Differential Drop Kit (1), Hardware and Detailed Instructions Liftcraft suspension lift and leveling kits come with a lifetime guarantee and are the easiest, safest, and most affordable way to improve the look of your truck and run bigger tires