3" REAR BLOCK KIT - GM SILVERADO & SIERRA 1500 6-LUG 1999-2024

QUICK OVERVIEW Chevy/GMC 3 Inch OEM Style Rear Block Kit. 1999-2024 GM/CHEVY 1500 6 LUG 2WD/4WD 3.0in. TALL REAR BLOCK KIT OEM style cast iron rear lift blocks. Includes new U-bolts. Shock extensions may be needed depending on application.   ReadyLIFT OEM-style rear block kits are available for model specific applications. These Rear Block Kits include two (2) 3" Rear Blocks, four (4) E-Coated U-Bolts, eight (8) Nuts and Washers and will safely lift the rear of your truck an additional 1" to 3" depending on the application. Based on OEM designs and never made out of light weight extrusions, our 3" GM Blocks are made from cast iron and have anti-rotation ears built-in. Fits 1999-2021 classic and current body style 6-lug model GM trucks. Models with 1.25" OEM blocks will want to take advantage of the additional 1.75" of lift for towing and hauling, particularly when using a front leveling kit. 1999-2006 4WD trucks will rep