ReadyLift 3.5"F / 2"R SST Lift Kit

 

The ReadyLIFT 3.5 inch F / 2 inch R SST Lift Kit gives heavy-duty GM truck customers a confident way to raise ride height, clear larger tires, and keep a work-ready stance without moving into a tall full suspension system. The system is built for trucks that still need to tow, haul, commute, and handle daily responsibilities after the suspension has been lifted. Its Smart Suspension Technology layout balances front lift, rear support, and geometry correction so the truck gains a stronger profile while preserving the controlled feel customers expect from a heavy-duty platform.

The front of the system uses forged torsion keys indexed for lift, allowing adjustable front ride height while helping avoid the harsh feel that can come from simply over-cranking factory torsion bars. Heavy-duty tubular steel upper control arms are added to support the lifted suspension position and help keep alignment geometry in a more useful range. The result is a taller front stance with the durability and correction needed for trucks that see both pavement and jobsite use.

Rear ride height is handled with OEM-style cast iron lift blocks and longer U-bolts, giving the back of the truck a purposeful two inch increase. The cast block design is intended for demanding heavy-duty applications where load stability and long-term shape retention matter. For customers who use their truck with trailers, tools, cargo, or recreational gear, the rear lift helps maintain a composed stance instead of creating a nose-high appearance after front lift is added.

Steering and driveline correction are part of the appeal of the SST layout. Heavy-duty replacement tie rod assemblies help strengthen a known wear point on GM heavy-duty trucks, while differential drop spacers help position the front driveline angles on compatible four-wheel-drive applications. These components work together to make the added height feel more complete, instead of leaving the truck lifted without the supporting hardware that helps it drive properly.

The kit is designed for selected GM 3500 HD applications with the required single rear wheel tow package rear springs or dual rear wheel setup. Tire clearance can support up to a 34 inch tire when paired with an appropriate wheel and tire combination, and final fit depends on wheel width, offset, tire construction, trim, and installation setup. Customers planning new wheels and tires should treat test fitting as part of the upgrade so the finished truck has the stance, clearance, and drivability they expect.

Whether customers are upgrading for towing, larger tires, heavy-duty work, or a stronger lifted stance, the ReadyLIFT 3.5 inch F / 2 inch R SST Lift Kit delivers height, correction, and truck-focused capability. Now Available at LEER!

 

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Features & Specifications

Product Type: Suspension lift kit

Brand: ReadyLIFT

Series: SST lift kit

Front Lift Height: 3.5 inch maximum front lift

Rear Lift Height: 2 inch rear lift

Vehicle Fitment: Selected 2011-2019 GM 3500 HD single rear wheel tow package and dual rear wheel applications

Maximum Tire Size: Up to 34 inch tire diameter with proper wheel and tire setup

Construction: Tubular steel upper control arms, forged torsion keys, heavy-duty steering components, and OEM-style cast iron rear lift blocks

Functionality:

• Raises the front suspension for additional clearance and a more level heavy-duty truck stance
• Adds rear lift to support a balanced look for towing, hauling, and work-truck use
• Helps maintain ride quality with lift-specific torsion keys and supporting suspension correction
• Improves front-end geometry with tubular upper control arms built for lifted applications
• Supports larger tire packages when the wheel width, offset, and tire design are matched correctly
• Strengthens steering feel with heavy-duty replacement tie rod assemblies
• Helps manage front driveline angles on compatible four-wheel-drive applications
• Creates a bolt-on upgrade path for customers who want more height without a tall full lift system

 

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Why Choose

This product is ideal for customers who want a heavy-duty lift system that adds tire clearance, suspension correction, and towing-ready stance without excessive height.

• Smart Suspension Technology provides more lift than a leveling kit while keeping the package practical for daily use
• Forged torsion keys help create front ride height without relying on unsafe torsion bar over-adjustment
• Tubular upper control arms support alignment correction and durability after the front suspension is lifted
• Cast iron rear blocks and longer U-bolts give the rear suspension a sturdy, work-ready lift foundation
• Heavy-duty tie rod assemblies add strength where GM heavy-duty trucks often benefit from reinforcement
• Differential drop spacers help lifted four-wheel-drive trucks keep front axle angles in a safer operating range
• The balanced front and rear lift profile works well for towing, hauling, trail access, and aggressive street stance
• Customers can pair the system with properly selected wheels and tires for a clean lifted look with functional clearance

 

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What's Included

• Forged torsion keys indexed for 3.5 inch front lift
• Tubular steel upper control arms
• Heavy-duty replacement tie rod assemblies
• Differential drop spacers for compatible four-wheel-drive applications
• OEM-style 2 inch cast iron rear lift blocks
• Longer rear U-bolts and installation hardware
• Application-specific mounting components
• Installation instructions

Note: Confirm included components before installation.

 

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Installation Notes

• Professional installation is recommended, and a post-installation alignment inspection should be completed before regular driving.
• Longer front shocks are required and should be selected for the final front lift height; base kit contents should be confirmed before installation.
• Wheel and tire combinations should be test fit before final installation because tire diameter, tread width, wheel width, offset, and vehicle condition can affect clearance.
• Not intended for trucks with the factory top overload spring camper package; headlamp aim and driver-assistance system function should be checked after suspension height changes.

Buyer is responsible for use in accordance with applicable vehicle, road, off-road, towing, racing, and local laws.

 

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Warranty Information

ReadyLIFT suspension products are generally supported by warranty coverage for qualifying defects in materials and workmanship for the original purchaser. Warranty coverage typically excludes improper installation, misuse, modifications, electrical issues, overloading, tampering, impact damage outside warranty terms, or non-compliant use; proof of purchase may be required for warranty claims.