{"product_id":"readylift-gm-oem-style-2-inch-rear-lift-block-kit-for-chevy-silverado-3500-hd-and-gmc-sierra-3500-hd-part-66-3122","title":"ReadyLift GM OEM Style 2-Inch Rear Lift Block Kit for Chevy Silverado 3500 HD and GMC Sierra 3500 HD (Part #66-3122)","description":"ReadyLIFT OEM style rear block kits are available for the 2011-2026 GM 2600 HD single rear wheel pickups with the factory Trailer Package rear springs. These Rear Block Kits include two (2) 2\" Rear Blocks, four (4) E-Coated U-Bolts, eight (8) Nuts and Washers and will safely lift the rear of your 2011-2026 2WD and 4WD 8-lug Single Rear Wheel GM trucks with trailer package springs 2\".   NOTE:   This kit is not compatible with trucks equipped with top-mounted overload springs. Based on OEM designs and never made out of light weight extrusions our 2\" 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: For Use Only on 2600HD trucks that have the factory Trailer Package rear springs.    This kit is not compatible with trucks equipped with top-mounted overload springs.\n\u003cp\u003eUpgrade your 2012-2016 GM 3500 HD or Sierra 3500 HD truck with the ReadyLift OEM Style 2-Inch Rear Lift Block Kit, part number 66-3122. Designed specifically for trucks equipped with the factory Trailer Package rear springs, this kit provides a reliable and safe way to lift the rear of your vehicle, enhancing its stance and towing capabilities. Crafted from cast iron, these 2-inch blocks match OEM specifications, ensuring maximum strength, durability, and compatibility with your vehicle. The kit includes two cast iron rear lift blocks, four E-coated U-bolts, and eight nuts and washers, making installation straightforward for professional installers. This lift kit is ideal for restoring a slight rake after leveling or for adding a subtle lift to improve load handling and aesthetics. It is not compatible with trucks equipped with top-mounted overload springs, so please verify your vehicle's rear spring configuration before purchase. As with all ReadyLIFT products, this kit is backed by a lifetime warranty, providing peace of mind and quality assurance. Designed for direct fitment, the installation requires professional expertise and approximately two hours to complete. Proper installation ensures your vehicle maintains safety and performance standards while gaining the benefits of a slight rear lift. This product complies with California Proposition 65 warnings due to potential chemical exposure during manufacturing, specifically Di(2-ethylhexyl)phthalate (DEHP).\u003c\/p\u003e \u003cp\u003eWhether you’re looking to improve your truck’s appearance, enhance towing capabilities, or restore factory rake after leveling, the ReadyLift GM OEM Style Rear Block Kit offers a dependable solution. It is compatible with a range of Chevrolet Silverado and GMC Sierra 3500 HD models from 2012 through 2016, ensuring a perfect fit for your heavy-duty truck. The kit's robust cast iron construction guarantees maximum strength and longevity, making it suitable for demanding hauling and towing tasks. Installation involves replacing the factory blocks with these durable upgrades, which are engineered to work seamlessly with your existing suspension components. Overall, this lift block kit combines strength, reliability, and ease of installation — making it a smart investment for any serious truck owner looking to optimize their vehicle's performance and appearance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eEngineered for 2012-2016 GM 3500 HD trucks with factory Trailer Package rear springs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes two 2-inch cast iron rear lift blocks for durability and strength\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSupplied with four E-coated U-bolts, nuts, and washers for secure installation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned to restore or add a slight rake for improved towing and load handling\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with 2WD and 4WD models with 8-lug single rear wheel configurations\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRequires professional installation, approximately 2 hours\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBacked by Lifetime Warranty for quality assurance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eNot compatible with trucks equipped with top-mounted overload springs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMade from OEM-style cast iron, matching factory specifications\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nChevrolet Silverado 2500 HD  2020\u003cbr\u003e\nChevrolet Silverado 2500 HD  2021\u003cbr\u003e\nChevrolet Silverado 2500 HD  2022\u003cbr\u003e\nChevrolet Silverado 2500 HD  2023\u003cbr\u003e\nChevrolet Silverado 2500 HD  2024\u003cbr\u003e\nChevrolet Silverado 3500 HD  2007\u003cbr\u003e\nChevrolet Silverado 3500 HD  2008\u003cbr\u003e\nChevrolet Silverado 3500 HD  2009\u003cbr\u003e\nChevrolet Silverado 3500 HD  2010\u003cbr\u003e\nChevrolet Silverado 3500 HD  2011\u003cbr\u003e\nChevrolet Silverado 3500 HD  2012\u003cbr\u003e\nChevrolet Silverado 3500 HD  2013\u003cbr\u003e\nChevrolet Silverado 3500 HD  2014\u003cbr\u003e\nChevrolet Silverado 3500 HD  2015\u003cbr\u003e\nChevrolet Silverado 3500 HD  2016\u003cbr\u003e\nChevrolet Silverado 3500 HD  2017\u003cbr\u003e\nChevrolet Silverado 3500 HD  2018\u003cbr\u003e\nChevrolet Silverado 3500 HD  2019\u003cbr\u003e\nChevrolet Silverado 3500 HD  2020\u003cbr\u003e\nChevrolet Silverado 3500 HD  2021\u003cbr\u003e\nChevrolet Silverado 3500 HD  2022\u003cbr\u003e\nChevrolet Silverado 3500 HD  2023\u003cbr\u003e\nChevrolet Silverado 3500 HD  2024\u003cbr\u003e\nChevrolet Silverado 3500 HD  2025\u003cbr\u003e\nGMC Sierra 2500 HD  2020\u003cbr\u003e\nGMC Sierra 2500 HD  2021\u003cbr\u003e\nGMC Sierra 2500 HD  2022\u003cbr\u003e\nGMC Sierra 2500 HD  2023\u003cbr\u003e\nGMC Sierra 2500 HD  2024\u003cbr\u003e\nGMC Sierra 3500 HD  2011\u003cbr\u003e\nGMC Sierra 3500 HD  2012\u003cbr\u003e\nGMC Sierra 3500 HD  2013\u003cbr\u003e\nGMC Sierra 3500 HD  2014\u003cbr\u003e\nGMC Sierra 3500 HD  2015\u003cbr\u003e\nGMC Sierra 3500 HD  2016\u003cbr\u003e\nGMC Sierra 3500 HD  2017\u003cbr\u003e\nGMC Sierra 3500 HD  2018\u003cbr\u003e\nGMC Sierra 3500 HD  2019\u003cbr\u003e\nGMC Sierra 3500 HD  2020\u003cbr\u003e\nGMC Sierra 3500 HD  2021\u003cbr\u003e\nGMC Sierra 3500 HD  2022\u003cbr\u003e\nGMC Sierra 3500 HD  2023\u003cbr\u003e\nGMC Sierra 3500 HD  2024","brand":"ReadyLift","offers":[{"title":"Default Title","offer_id":55991356784932,"sku":"663122","price":136.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/0497\/7444\/files\/RL-BLOCK-KIT-2-REAR.png?v=1786051173","url":"https:\/\/kovaoffroad.com\/products\/readylift-gm-oem-style-2-inch-rear-lift-block-kit-for-chevy-silverado-3500-hd-and-gmc-sierra-3500-hd-part-66-3122","provider":"Kova Offroad","version":"1.0","type":"link"}