2" Rear Block Kit - GM Silverado / Sierra 2600 HD OEM Style 2011-2026
ReadyLift Off Road
2" Rear Block Kit - GM Silverado / Sierra 2600 HD OEM Style 2011-2026
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 now available for the 2011-2026 GM 2600 HD single rear wheel pickups. 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 2". Based on OEM designs and never made out of lightweight 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: Single Rear Wheel Only (will not fit Dually) NOTE: Not intended for vehicles equipped with factory overload springs unless custom-length U-bolts are used (not included).
- Fits 20112026 GM HD trucks
- OEM style 2" rear lift block kit
- Includes new longer ubolts and hardware
- OEM style cast iron construction
- Not intended for vehicles equipped with factory overload springs
- Customlength ubolts not included
- Fits 2011 Fits 20112026 GM HD trucks
- Includes new longer u Includes new longer ubolts and hardware
- Custom Customlength ubolts not included"
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.
- 2011–2014 GMC Sierra 2500 HD
- 2011–2014 GMC Sierra 3500 HD
- 2011–2026 Chevrolet Silverado 2500 HD
- 2011–2026 GMC Sierra 2500 HD
- 2011–2026 GMC Sierra 3500 HD
- 2015–2026 Chevrolet Silverado 2500 HD
- 2015–2026 GMC Sierra 2500 HD
- 2015–2026 GMC Sierra 3500 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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Manufacturer & part identification
ReadyLift Off Road
| Option | SKU / part reference |
|---|---|
| Standard | 66-3112 |
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.
Request fitment help →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
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information