ReadyLift 3'' SST Lift Kit With Fabricated Control Arms And Falcon 1.1 Monotube Shocks- GM Silverado / Sierra 2500HD/3500HD 2020-2026

The ReadyLift SST Lift Kit GM Silverado Sierra 2500HD and 3500HD is a complete and premium front and rear suspension upgrade that delivers 3 inches of front lift and 1 inch of rear lift with Falcon 1.1 monotube shocks on all four corners, Xtreme Duty 4130 chromoly upper control arms, forged torsion keys engineered specifically for this kit, and an inner fender bracket to increase large tire clearance. 

Part number 69-30320: This system fits 35x12.50 tires on 20x9 zero-offset wheels without any trimming and is designed specifically for GM HD owners who want a properly matched and complete lift system without compromising the ride quality and towing capability that Silverado and Sierra HD owners depend on. At IMM Hawaii Parts, we carry this kit for GM 2500HD and 3500HD owners who want the best combination of lift performance, front-end strength, and shock quality available in a single matched package.

ReadyLift SST Lift Kit GM Silverado Sierra 2500HD With Falcon 1.1 Monotube Shocks

All four Falcon 1.1 monotube shocks in this system are tuned specifically for the GM 2500HD and 3500HD platform running 3 inches of front lift and 1 inch of rear lift. The monotube design keeps shock oil and gas completely separated through the full stroke, preventing aeration and delivering consistent damping performance through sustained towing, hauling, and off-road use, where twin-tube shocks develop heat and fade. 

The Falcon 1.1 shocks deliver improved dynamic roll control and low-speed damping character that makes the lifted Silverado and Sierra HD more composed and confident on the highway during towing and more controlled on dirt roads and trail terrain. Customers at IMM Hawaii Parts consistently choose this complete kit over alternatives because the Falcon shock quality and matched tuning deliver a lift experience that generic or entry-level shocks simply cannot match on a heavy-duty platform.

Xtreme Duty 4130 Chromoly Upper Control Arms

The Xtreme Duty upper control arms in this kit are fabricated from 4130 chromoly steel, one of the strongest and most durable materials used in aftermarket suspension components. Chromoly construction gives these arms significantly greater tensile strength and resistance to bending and fatigue compared to standard DOM tubing or cast alternatives, which is important on a heavy-duty platform like the GM 2500HD and 3500HD that regularly operates at maximum payload and towing weight. 

These arms are designed to correct front-end geometry at the 3-inch lift height, maintaining proper alignment range and ball joint operating angles so the front suspension performs reliably through years of hard use without premature wear.

Forged Torsion Keys Engineered for This Kit

The forged torsion keys included in this system are engineered specifically for this ReadyLift kit and the 2020 through 2026 GM HD torsion bar front suspension. Using forged keys rather than cast alternatives provides greater strength and more precise indexing on the torsion bar, which ensures the correct lift height is achieved and maintained consistently without the slipping or settling that can occur with lower-quality key designs. 

These keys are the foundation of the front lift on this system and are designed to work in conjunction with the chromoly UCAs and Falcon shocks for a fully matched and geometry-correct front-end setup.

Inner Fender Bracket for Increased Large Tire Clearance

This kit includes an inner fender bracket that increases clearance for large tires on the 2020 through 2026 Silverado and Sierra HD, reducing the risk of rubbing at full steering lock with the 35x12.50 tire size. The no-trim fitment is verified for 35x12.50 tires on 20x9 zero-offset wheels, and with trimming, the maximum fitment extends to 35x12.50 on 20x10 wheels at minus 18 offset. Note that trimming requirements can vary between Silverado and Sierra models, so always verify clearance on your specific truck before finalizing the wheel and tire setup.

Important Setup Note for Torsion Key Adjustment

When adjusting the torsion keys on this system, do not exceed 27 inches measured from the wheel center to the fender edge. Exceeding this height tops off the suspension by eliminating downward travel, which significantly degrades ride quality, increases stress on suspension components, and accelerates wear across the front end. Staying within the recommended measurement ensures the suspension operates correctly and delivers the ride quality and component longevity this system is designed to provide.

Product Details

Who Should Choose This Kit?

The ReadyLift SST Lift Kit GM Silverado Sierra 2500HD is the right choice for 2020 through 2026 GM 2500HD and 3500HD owners who want a complete and premium lift system with Falcon 1.1 monotube shocks, 4130 chromoly upper control arms, forged torsion keys, and verified no-trim clearance for 35x12.50 tires. Shop this kit and complete GM HD wheel and tire packages at IMM Hawaii Parts, where our team can help you build the perfect lifted Silverado or Sierra HD setup for towing, hauling, and trail use.

Not sure which product is right for your vehicle? Reach out to IMM Hawaii Parts for expert recommendations and dependable customer support.