1" Rear Block Kit - GM Silverado / Sierra 2600/3500 HD 2011-2026
ReadyLift Off Road
1" Rear Block Kit - GM Silverado / Sierra 2600/3500 HD 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 available for the 2011-2026 GM 2600/3500 HD single rear wheel pickups. 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 2011-2026 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.
- 2011-2026 GM 2600HD/3500HD OEM Style 1" Rear Lift Block Kit
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.
- Color: Black
- Fitment: Direct Fitment
- Front or Rear: Rear
- Install Difficulty: Difficult Requires Professional Installation
- Installation Time: 2 Hours
- Nuts Included: Yes
- Prop65 Chem1: Di(2-ethylhexyl)phthalate (DEHP)
- Rear Lift Component: Block and U-bolt
- Rear Lift Height: 1 Inch
- Shocks Included: No
Vehicle application overview
Confirm trim, engine, and installation requirements before ordering.
- 2011–2014 GMC Sierra 2500 HD
- 2011–2025 Chevrolet Silverado 2500 HD
- 2011–2025 GMC Sierra 2500 HD
- 2011–2026 Chevrolet Silverado 2500 HD
- 2011–2026 GMC Sierra 2500 HD
- 2015–2025 Chevrolet Silverado 2500 HD
- 2015–2026 Chevrolet Silverado 2500 HD
- 2015–2026 GMC Sierra 2500 HD
- 2020–2025 Chevrolet Silverado 3500 HD
- 2020–2025 GMC Sierra 2500 HD
- 2020–2025 GMC Sierra 3500 HD
- 2020–2026 Chevrolet Silverado 3500 HD
- 2020–2026 GMC Sierra 2500 HD
- 2020–2026 GMC Sierra 3500 HD
- 2021–2026 Chevrolet Silverado 2500 HD
- 2022–2025 GMC Sierra 2500 HD
- 2022–2025 GMC Sierra 3500 HD
- 2022–2026 GMC Sierra 2500 HD
- 2022–2026 GMC Sierra 3500 HD
- 2024–2025 Chevrolet Silverado 2500 HD
- 2024–2025 GMC Sierra 2500 HD
- 2024–2026 Chevrolet Silverado 2500 HD
- 2024–2026 GMC Sierra 2500 HD
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Manufacturer & part identification
ReadyLift Off Road
| Option | SKU / part reference |
|---|---|
| Standard | 26-30100 |
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