ReadyLift 4" SST 2.1 Premium Suspension System

 

The ReadyLIFT 4" SST 2.1 Premium Suspension System is engineered specifically for 2019–2025 Chevy Silverado 1500 and GMC Sierra 1500 trucks that need premium suspension performance, larger tire clearance, and enhanced off-road capability without sacrificing daily drivability. This premium suspension system combines ReadyLIFT Smart Suspension Technology with Falcon 2.1 Fast Adjust dampers to create one of the most advanced bolt-on suspension systems available for GM 1500 platforms.

Built around Falcon 2.1 front coilovers and rear shocks, the SST2.1 system delivers significantly improved ride quality, handling, and damping performance compared to traditional spacer lift kits. The Falcon dampers feature a 3-position Fast Adjust system that allows drivers to quickly tune the suspension for Sport, Moderate Tow/Haul, or Heavy Tow/Haul settings depending on driving conditions and vehicle load.

Additional features include heavy-duty DOM tubular upper control arms with proprietary high-angle ball joints, rear lift blocks, differential correction geometry, and no-cut suspension engineering designed to maintain factory ride quality while improving off-road capability and suspension articulation. ReadyLIFT specifically engineered the control arms to improve durability and alignment retention when running larger wheels and tires.

The SST2.1 system provides approximately 4 inches of front lift with a 2.25-inch rear lift block configuration, creating an aggressive yet functional stance that maintains mild rake for towing and hauling applications. ReadyLIFT states the system supports up to 295/65R20 tires on Chevrolet applications and 295/55R20 tires on GMC Sierra and some Silverado applications depending on wheel offset and fender clearance.

Engineered specifically for modern GM 1500 trucks, the ReadyLIFT 4" SST 2.1 Premium Suspension System provides a complete suspension transformation that balances ride comfort, off-road capability, towing stability, and aggressive appearance.

Installation is designed as a complete bolt-on suspension system using application-specific hardware and geometry correction components. ReadyLIFT recommends professional installation and alignment after installation.

Whether you're upgrading for larger tires, towing performance, overlanding, trail capability, or a more aggressive truck stance, the ReadyLIFT 4" SST 2.1 Premium Suspension System delivers premium suspension performance for Silverado and Sierra 1500 trucks. Now Available at LEER!

 

---

 

Features & Specifications

Product Type: Premium Suspension Lift System
Material: DOM tubular steel control arms with Falcon 2.1 aluminum-bodied dampers
Finish Options: Black powder-coated suspension components
Mounting Type: Complete bolt-on suspension system
Fitment: 2019–2025 Chevy Silverado 1500 & GMC Sierra 1500 4WD
Front Lift Height: 4 inches
Rear Lift Height: 2.25 inches
Maximum Tire Size: Up to 35 inches depending on application
Design: SST2.1 premium suspension system with Falcon Fast Adjust dampers

Functionality:

• Improved off-road capability
• Enhanced ride quality
• Tow/haul suspension tuning
• Larger tire clearance
• Improved suspension articulation
• OEM-style ride quality retention

 

---

 

Available Options

The ReadyLIFT 4" SST 2.1 Premium Suspension System is available in:

Vehicle Fitments

• 2019–2024 Chevy Silverado 1500 4WD
• 2019–2024 GMC Sierra 1500 4WD
• 2025 Chevy Silverado 1500 4WD
• 2025 GMC Sierra 1500 4WD

Finish Options

• Black powder-coated suspension components
• Hard-anodized Falcon shock bodies
• Aluminum coilover and shock finish

Configurations

• 4-inch SST premium suspension system
• Falcon 2.1 Fast Adjust shock configuration
• Front coilover suspension setup
• DOM tubular upper control arm configuration
• 2.25-inch rear lift block setup
• Bolt-on no-cut installation design
• Tow/haul suspension tuning setup
• 35-inch tire clearance configuration
• Off-road suspension enhancement configuration

Choose the correct ReadyLIFT SST2.1 system based on your Silverado or Sierra model year, suspension package, and intended tire size.

 

---

 

Why Choose the ReadyLIFT 4" SST 2.1 Premium Suspension System?

This product is ideal for customers who want premium ride quality, larger tire capability, and advanced suspension tuning for both daily driving and off-road performance.

• Adds 4 inches of lift for increased clearance and aggressive stance
• Includes Falcon 2.1 Fast Adjust dampers for customizable suspension tuning
• Uses heavy-duty DOM tubular control arms for improved durability and articulation
• Supports up to 35-inch tires on compatible GM 1500 applications
• Maintains OEM-style ride quality with no-cut SST suspension engineering
• Improves towing stability and off-road capability with application-specific geometry correction

 

---

 

What’s Included

• Falcon 2.1 front coilovers
• Falcon 2.1 rear shocks
• DOM tubular upper control arms
• Rear lift blocks
• Differential drop components
• Crossmembers
• Brake line brackets
• Sway bar relocation hardware
• Application-specific mounting hardware
• Installation instructions

 

---

Installation Notes

• Designed specifically for Chevy Silverado 1500 and GMC Sierra 1500 4WD applications
• Professional installation is recommended
• Alignment inspection is required after installation
• Every wheel and tire combination should be test fit before final installation
• Not compatible with Trail Boss, AT4X, ZR2, Diesel, or Super Cruise-equipped models 
• Vehicles equipped with Adaptive Ride Control (ARC) require an aftermarket bypass module 
• Vehicles equipped with mono-leaf rear springs require specific U-bolt hardware 
• Use of Auto 4 Hi mode is not recommended after installation 
• Ride quality and tire clearance may vary depending on wheel offset, tire design, and trim level

 

---

 

Tire Fitment Notes

ReadyLIFT states the SST2.1 system supports up to 295/65R20 tires on 2019–2022 Chevy Silverado applications using a 20x9 wheel with 0 offset. GMC Sierra and some newer Chevy applications support up to 295/55R20 tires depending on fender clearance and wheel specifications.

 

---

 

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.