ReadyLIFT OEM-style rear block kits are available for model specific applications. These Rear Block Kits include two (2) 2.25" 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 2.25" 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. 2007-2018 2WD and 4WD trucks with OEM 1.25" blocks will want to take advantage of the additional 1" of lift for towing and hauling, particularly when using a front leveling kit. This block is 2.25" which, when removing the factory 1.25" block, results in 1" of increased rear lift. 1999-2006 2WD trucks [which have no rear block] will to take advantage of 2.25" lift using the 66-3002 ReadyLIFT Rear Block Kit. This kit eliminates the dangers of having to stack blocks which may be illegal in some states. ReadyLIFT Block Kits will put a slight rake back in your truck for hauling or towing and are designed to work in concert with your ReadyLIFT Suspension Leveling Kit. Like all ReadyLIFT products these block kits come with our Lifetime Warranty. Every ReadyLIFT Rear Block Kit comes complete with one pair of OEM- quality e-coated cast iron rear blocks, model and size-specific U-bolts, hardware and instructions. Note: 2019-UP trucks may need to trim off excess bolt length after installation. Note: Not for use on 2019-2022 GM 1500 trucks with the composite rear overload. Note: This GM 1500 kit is NOT COMPATIBLE with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable ‚¬ the U-bolt is round/circular around the top of the leaf spring. This kit only works with vehicle equipped with traditional steel leaf springs ‚¬ identified by ‚¬Ëœsquare‚¬„ U-bolts.

ReadyLIFT Rear Coil Lift Spacers are available 2001-2020 Chevrolet and GMC SUV and SUT vehicles with rear coil spring suspensions. These Rear Coil Spring Spacer Kits include a pair of CNC-machined 6061-T6 aircraft-grade billet Aluminum rear coil spring spacers that easily install under the OEM rear coil spring to provide 1.5" of rear lift. The ReadyLIFT rear spacers are ideal for adding a slight rake to a GM SUV or SUT for towing or hauling, or if you've installed a leveling kit to fit larger wheels and tires in the front, and want to bring the back end up for a slightly raked stance. ReadyLIFT 66-3015 1.5" Rear Coil Spring Spacers are designed to work in concert with your ReadyLIFT Suspension Leveling Kit or independently. Like all ReadyLIFT products, these block kits come with our Lifetime Warranty. Don't settle for cheap plastic or urethane rear spacers that will split and fail over time. Demand the best quality suspension product for your expensive SUV or SUT - demand ReadyLIFT CNC-machined billet Aluminum rear coil spring spacers! Fits Rear Coil Spring equipped 2WD and 4WD 2001-2020 Chevrolet Tahoe, Z71, Suburban, 1500 Avalanche; GMC Yukon, Yukon XL, Denali; Hummer H2 with rear coils as well as 2002-2009 2WD and 4WD Chevrolet Trailblazer, Trailblazer XL; GMC Envoy; and Olds Bravada with rear coils. NOTE: Not compatible with AutoRide, Air Leveling, and/or MagnaRide Suspension