2007-2021 Tundra 5" Block Kit (26-5850)The ReadyLIFT OEM style 5 inch Rear Block Kit provides a safe and effective way to lift the rear of 2007 2021 Toyota Tundra trucks. Based on factory designs and constructed from durable cast iron, these blocks are engineered to avoid the weaknesses of lightweight extrusions. This kit is an ideal solution for restoring a slight rake to a leveled truck or as a functional tow package upgrade, ensuring your vehicle remains level and capable when hauling