ReadyLIFT 4" Rear Block Kit - GM Silverado / GMC Sierra 2500HD/3500HD 2011-2022. ReadyLIFT OEM-style rear block kits are available for the 2011-2022 GM 2500HD/3500HD trucks. These Rear Block Kits include two (2) Rear Blocks, four (4) E-Coated U-Bolts, eight (8) Nuts and Washers and will safely lift the rear of your 2011-2022 2WD and 4WD 8-lug truck.
