ReadyLIFT OEM-style rear block kits are available for the 1988-1998 2WD & 4WD 6-lug and 2000-2010 GM 2500HD/3500HD single rear wheel pickups. These Rear Block Kits include two (2) 1" Rear Blocks, four (4) E-Coated U-Bolts, eight (8) Nuts and Washers and will safely lift the rear of your 1988-1998 2WD & 4WD 6-lug and 2000-10 GM HD trucks 1". Based on OEM designs and never made out of light-weight extrusions, our 1" GM Blocks are made from cast iron just like the factory blocks, ensuring maximum strength and reliability. ReadyLIFT Block Kits will put a slight rake back in your truck for hauling or towing and are designed to work with your ReadyLIFT Suspension Leveling Kit. Like all ReadyLIFT products, these block kits come with our Lifetime Warranty. Note: Single Rear Wheel Only (will not fit Dually)