2015-2018 GM Colorado 1" Rear Block Kit (66-3510)

The ReadyLIFT 1-inch Rear Block Kit for Chevrolet Colorado and GMC Canyon trucks is an economical way to increase the rear ride height of your vehicle. These blocks are manufactured from cast iron to ensure maximum strength and durability, mimicking the design of factory lift blocks. By inserting these between the leaf spring and the axle, you gain an additional inch of lift while maintaining the factory ride quality and load-carrying capacity, making it a reliable choice for daily drivers and work trucks alike.

Features

• Provides 1.0 inch of rear lift to level the vehicle or increase ground clearance.
• Cast iron construction offers superior strength and prevents the compression issues associated with aluminum blocks.
• Includes E-coated U-bolts specifically designed for the Colorado and Canyon hardware requirements.
• Maintains the factory-standard ride quality and suspension travel.
• Preserves the original towing and hauling capabilities of the vehicle.
• Simple bolt-on design that requires no cutting or welding for installation.

Notes

• Vehicle alignment should be checked after installation to ensure optimal handling.
• Estimated installation time is approximately 1 to 2 hours.
• Standard hand tools are generally sufficient for the installation of this kit.

Compatibility Notes

• Fits 2015–2022 Chevrolet Colorado and GMC Canyon 2WD and 4WD models.
• Compatible with both gasoline and Duramax Diesel engine configurations.
• Does not fit the Colorado ZR2 or Canyon AT4X models due to their unique suspension architecture.

Tire Fitment

• Allows for a slightly larger tire in the rear while maintaining proper fender clearance.
• Works best in combination with a 2-inch or 2.5-inch front leveling kit for a balanced look.

Specs

• Rear Lift Height: 1.0 inch.
• Material: Heavy-Duty Cast Iron.
• Kit Contents: Two (2) Rear Lift Blocks, Four (4) E-coated U-bolts, and necessary Nuts and Washers.