ReadyLift 3.5"F / 1"R SST Lift Kit

 

The ReadyLIFT 3.5"F / 1"R SST Lift Kit is engineered specifically for 2011–2019 Chevrolet Silverado 2500HD and GMC Sierra 2500HD Single Rear Wheel trucks seeking increased ride height, larger tire clearance, and improved suspension performance while maintaining factory ride quality and towing stability. Built around ReadyLIFT Smart Suspension Technology, this system combines heavy-duty suspension correction components with lift-specific hardware to create a balanced suspension upgrade for both work and recreational use.

Built around ReadyLIFT’s HD truck suspension engineering, the SST system features forged torsion keys indexed for 3.5 inches of lift, allowing adjustable front ride height without over-cranking factory torsion bars. The kit also includes heavy-duty tubular steel upper control arms specifically designed to match the strength and suspension demands of GM HD platforms while correcting suspension geometry after lifting.

Additional features include heavy-duty replacement tie rod assemblies, differential drop spacers, OEM-style cast iron rear lift blocks, and extended U-bolts engineered specifically for towing and heavy-duty load applications. ReadyLIFT designed the cast rear blocks to resist deformation under heavy payload conditions while preserving ride comfort and rear suspension stability.

The SST system delivers approximately 3.5 inches of front lift with 1 inch of rear lift, creating a leveled yet functional stance while maintaining proper driveline geometry and steering characteristics. ReadyLIFT states the system supports up to 34-inch tires, with verified fitment for 34x11.50 tires on 9-inch-wide wheels with +12 offset.

Engineered specifically for GM HD truck applications, the ReadyLIFT 3.5"F / 1"R SST Lift Kit delivers improved suspension capability, enhanced ride quality, and aggressive styling while maintaining OEM-style comfort and towing performance.

Installation is designed as a complete bolt-on suspension system using application-specific hardware and geometry correction components. ReadyLIFT confirms the system requires no cutting or welding during installation.

Whether you're upgrading for towing, larger tires, off-road use, work applications, or a more aggressive HD truck stance, the ReadyLIFT 3.5"F / 1"R SST Lift Kit delivers premium suspension enhancement for Silverado and Sierra 2500HD trucks. Now Available at LEER!

 

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Features & Specifications

Product Type: Suspension Lift Kit
Material: Heavy-duty steel suspension components with tubular upper control arms
Finish Options: Black powder-coated finish
Mounting Type: Complete bolt-on suspension lift system
Fitment: 2011–2019 Silverado/Sierra 2500HD Single Rear Wheel
Front Lift Height: 3.5 inches
Rear Lift Height: 1 inch
Maximum Tire Size: 34 inches
Design: SST suspension lift system with forged torsion keys

Functionality:

• Improved ground clearance
• Enhanced towing stability
• Larger tire clearance
• Improved suspension geometry
• OEM-style ride quality retention
• Heavy-duty load support

 

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Available Options

The ReadyLIFT 3.5"F / 1"R SST Lift Kit is available in:

Vehicle Fitments

• 2011–2019 Chevrolet Silverado 2500HD SRW
• 2011–2019 GMC Sierra 2500HD SRW

Finish Options

• Black powder-coated suspension components
• Forged torsion key finish
• OEM-style cast iron rear block finish

Configurations

• 3.5-inch front SST lift configuration
• 1-inch rear lift setup
• Forged torsion key configuration
• Tubular upper control arm setup
• Differential drop spacer configuration
• Heavy-duty tie rod setup
• OEM-style rear cast block configuration
• Bolt-on installation system
• 34-inch tire clearance setup
• Tow and heavy-duty hauling suspension configuration

Choose the correct ReadyLIFT SST lift system based on your Silverado or Sierra 2500HD wheel setup, towing requirements, and intended tire size.

 

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Why Choose the ReadyLIFT 3.5"F / 1"R SST Lift Kit?

This product is ideal for customers who want improved ride height and larger tire capability while maintaining towing stability and factory ride quality.

• Adds 3.5 inches of front lift for improved clearance and aggressive stance
• Uses forged torsion keys for proper suspension adjustment without excessive torsion bar preload
• Includes heavy-duty tubular control arms for corrected geometry and improved durability
• Supports up to 34-inch tires on compatible wheel setups
• Maintains OEM-style ride quality using SST suspension engineering
• Provides true bolt-on installation with no cutting or welding required

 

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What’s Included

• Forged torsion keys
• Tubular upper control arms
• Heavy-duty replacement tie rods
• Differential drop spacers
• OEM-style cast rear lift blocks
• Extended rear U-bolts
• Shock extension brackets
• Application-specific mounting hardware
• Installation instructions

 

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Installation Notes

• Designed specifically for 2011–2019 Silverado/Sierra 2500HD Single Rear Wheel applications
• Professional installation is recommended
• Alignment inspection is required after installation
• Every wheel and tire combination should be test fit before final installation
• Requires the use of longer front shocks; shocks are not included with the base kit 
• No cutting or welding required during installation 
• Single Rear Wheel applications only 
• Not compatible with trucks equipped with factory top overload spring camper package 
• 2011–2019 GM HD trucks require ReadyLIFT 66-7822B Heavy Duty Torsion Key Unloading Tool during installation 
• Ride quality and final lift height may vary depending on trim level, payload configuration, and suspension condition
• Headlamp aim should be checked and adjusted after installation

 

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Tire Fitment Notes

ReadyLIFT confirms support for up to 34-inch tires depending on wheel width, wheel offset, and tire design. Verified fitment includes 34x11.50 tires on 9-inch-wide wheels with +12 offset.

Example tire sizes include:

• 18-inch wheels – 295/70R18
• 20-inch wheels – 275/65R20
• 22-inch wheels – 285/55R22

 

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Warranty Information

ReadyLIFT Warranty

ReadyLIFT products are backed by a “No Hassle” product warranty for the original purchaser. ReadyLIFT states that missing or defective components are covered and that qualifying replacement parts may be provided under warranty.