ReadyLIFT OEM style rear block kits are available for the 2011-2024 GM 2500 HD single rear wheel pickups with the factory Trailer Package rear springs. Includes 2 1" Rear Blocks, 4 E-Coated U-Bolts, 8 Nuts and Washers and will safely lift the rear of your 2011-2024 2WD and 4WD 8-lug Single Rear Wheel GM trucks with trailer package spring 1". Made from cast iron
NOTE: For Use Only on 2500HD trucks that have the factory Trailer Package rear springs.