2" Rear Block Kit - GM Silverado / Sierra 2600/3500 HD OEM Style 2011-2026

2" Rear Block Kit - GM Silverado / Sierra 2600/3500 HD OEM Style 2011-2026

$169.95
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2" Rear Block Kit - GM Silverado / Sierra 2600/3500 HD OEM Style 2011-2026

ReadyLift Off Road

2" Rear Block Kit - GM Silverado / Sierra 2600/3500 HD OEM Style 2011-2026

$169.95

Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.

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.

  • GM 2600HD/3500HD OEM Style 2" Rear Lift Block Kit
  • For use only on single rear wheel 2600HD trucks with factory Trailer Package rear springs
  • Not compatible with HD trucks equipped with topmounted overload springs
  • Fits 2011-2026 GM HD trucks
  • Includes new longer Ubolts and hardware
  • OEM style cast iron construction
  • Not compatible with HD trucks equipped with top Not compatible with HD trucks equipped with topmounted overload springs
  • Fits 2011 Fits 2026 GM HD trucks
  • Includes new longer U Includes new longer Ubolts and hardware

Specifications

  • California Proposition 65: WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.
  • Fitment: Direct Fitment
  • Install Difficulty: Difficult Requires Professional Installation
  • Installation Time: 2 Hours
  • Prop65 Chem1: Di(2-ethylhexyl)phthalate (DEHP)

Vehicle application overview

Confirm trim, engine, and installation requirements before ordering.

  • 2001–2004 Chevrolet Silverado 3500 HD
  • 2001–2006 Chevrolet Silverado 3500 HD
  • 2001–2026 Chevrolet Silverado 3500 HD
  • 2004 Chevrolet Silverado 3500 HD
  • 2006 Chevrolet Silverado 3500 HD
  • 2006–2026 Chevrolet Silverado 3500 HD
  • 2007–2026 Chevrolet Silverado 3500 HD
  • 2011–2014 GMC Sierra 3500 HD
  • 2011–2026 GMC Sierra 3500 HD
  • 2015–2026 Chevrolet Silverado 3500 HD
  • 2015–2026 GMC Sierra 3500 HD
  • 2020–2026 Chevrolet Silverado 2500 HD
  • 2020–2026 Chevrolet Silverado 3500 HD
  • 2020–2026 GMC Sierra 2500 HD
  • 2020–2026 GMC Sierra 3500 HD
  • 2022–2026 GMC Sierra 2500 HD
  • 2022–2026 GMC Sierra 3500 HD

Your vehicle

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Product reference & ordering help

Manufacturer & part identification

ReadyLift Off Road

Use the SKU for your selected option when contacting us.
OptionSKU / part reference
Standard66-3122
Vehicle compatibility

Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.

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Installation & specifications

Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.

Shipping expectations

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Shipping & delivery information
Manufacturer warranty

Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.

Warranty information