ReadyLIFT OEM-style rear block kits are available for 2007-2021 Tundra applications. 26-5850 Rear Block Kit includes two (2) 5" Rear Blocks, four (4) E-Coated U-Bolts, eight (8) Nuts and Washers and will safely lift the rear of your truck an additional 5". Based on OEM designs and made from cast iron (never made out of lightweight extrusions), ReadyLIFT Block Kits will put a slight rake back in your truck for hauling or towing and are designed to work in concert with your ReadyLIFT Suspension Leveling Kit. This is a great Tow Package upgrade. Like all ReadyLIFT products, these block kits come with our Lifetime Warranty. Longer rear shocks will be required and if applicable, longer rear sway bar end links will be required.