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ReadyLift 1" Rear Lift Block Kit For 2011-2021 Chevrolet/GMC 2500/3500HD SRW

Pricing: $149.95

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ReadyLIFT OEM style rear block kits are available for the 2011-2021 GM 2500 HD single rear wheel pickups with the factory Trailer Package rear springs. 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 2011-2021 2WD and 4WD 8-lug Single Rear Wheel GM trucks with trailer package spring 1". Based on OEM designs and never made out of lightweight 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.



  • Made in USA
  • Lifetime Warranty
  • Maintains Factory Ride
  • OEM style cast iron construction
  • Includes new longer u-bolts and hardware



  • 2011-2021 GMC Sierra 2500HD
  • 2011-2021 GMC Sierra 3500HD
  • 2011-2021 Chevrolet Silverado 2500HD
  • 2011-2021 Chevrolet Silverado 3500HD



  • Direct bolt on replacement
  • GM 2500HD/3500HD OEM Style 1" Rear Lift Block Kit
  • For Use Only on Single Rear Wheel 2500HD trucks that have the factory Trailer Package rear springs


  • 66-3121
  • 66-3121
  • ReadyLift
  • New

Shipping Information

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

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