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ReadyLift Factory Style 3" Rear Block Kit For 1999+ Gm Silverado & Sierra 1500

Pricing: $159.95

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CA Prop 65
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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 replace the factory 2" block for 1" of additional lift. 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. Installation time is approximately 1.8 hours.



  • Made in USA
  • Retain Factory ride
  • Includes new u-bolts and hardware
  • OEM Style Cast Iron Rear Block Kit



  • 1999+ GMC Sierra 1500
  • 1999+ Chevrolet Silverado 1500



  • 2019-UP trucks may need to trim off excess bolt length after installation
  • Not for use on 2019-2021 GM 1500 trucks with the composite rear overload


  • 66-3003
  • 66-3003
  • ReadyLift
  • New

Shipping Information

  • Item Requires Shipping
  • 100.0 lbs.
  • FREE Ground Shipping

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