The ReadyLIFT 66-3002 Rear Block Kit is engineered to deliver an additional 1 inch of rear lift to 6-lug GM trucks by replacing the factory 1.25-inch blocks with heavy-duty 2.25-inch cast iron blocks. Designed based on OEM specifications, this kit is built for durability and functionality, featuring integrated locator pins and anti-rotation ears for a secure, long-lasting installation.
Ideal for trucks equipped with front leveling kits, the added rear height helps restore a subtle rake, improving towing and hauling performance. Unlike lightweight extrusions, these cast iron blocks offer superior strength and stability. Compatible with both classic and new body styles from 1999–2019, this kit provides a simple bolt-on solution that installs in about an hour.
Whether you're hauling loads or just want a more aggressive stance, this block kit is a dependable, OEM-style upgrade.
Compatible Vehicles
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1999–2018 Chevrolet Silverado 1500
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2007 Chevrolet Silverado 1500 Classic
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2019 Chevrolet Silverado 1500 LD (Old Model)
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1999–2018 GMC Sierra 1500
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2007 GMC Sierra 1500 Classic
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2019 GMC Sierra 1500 Limited (Old Model)
Key Features
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Heavy-duty cast iron construction—not lightweight aluminum
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Built-in anti-rotation ears and locator pin for added safety
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Designed to restore rake and enhance towing/hauling capability
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Perfect addition to trucks already using a front leveling kit
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Quick and easy installation—no modifications required
Specifications
| Feature | Details |
|---|---|
| Block Thickness | 2.25 Inch |
| Material | Cast Iron |
| Includes Spacers | No |
| Includes Wedge | No |
| Includes Hardware | Yes |
| Estimated Install Time | 1 Hour |
Customer Assurance
Buy with confidence. If you experience any issues with your ReadyLIFT product, contact us directly. We are committed to ensuring your satisfaction and will assist with any returns or exchanges in accordance with our policy.
| SIZE | CHEST(in.) | WAIST(in.) | HIPS(in.) |
|---|---|---|---|
| XS | 34-36 | 27-29 | 34.5-36.5 |
| S | 36-38 | 29-31 | 36.5-38.5 |
| M | 38-40 | 31-33 | 38.5-40.5 |
| L | 40-42 | 33-36 | 40.5-43.5 |
| XL | 42-45 | 36-40 | 43.5-47.5 |
| XXL | 45-48 | 40-44 | 47.5-51.5 |
| Weight | 23 kg |
|---|---|
| Dimensions | 12 × 24 × 35 cm |
| Color | Black, Green, Indigo |
| Size | Large, Medium, Small |
Excellent.