ReadyLift 4" Big Lift Kit w/Falcon 1.1 Shocks

 

The ReadyLIFT 4" Big Lift Kit w/Falcon 1.1 Shocks is engineered for truck owners seeking improved ground clearance, premium ride quality, and aggressive lifted styling while maintaining factory drivability and towing capability. Designed for 2017–2025 Ford Super Duty F-250/F-350 4WD and 2019–2025 Chevrolet Silverado/GMC Sierra 1500 Trail Boss and AT4 4WD applications, these premium suspension systems combine heavy-duty geometry correction with Falcon 1.1 monotube shocks for enhanced suspension performance both on and off-road. 

The GM Trail Boss and AT4 systems include heavy-duty fabricated crossmembers, differential drop brackets, lifted steering knuckles, tubular upper control arms, rear lift components, and Falcon 1.1 shocks engineered specifically for factory-lifted GM 1500 trucks. Ford Super Duty systems utilize custom wound front coil springs, radius arm drop brackets or heavy-duty replacement radius arms, track bar relocation brackets, sway bar correction components, and Falcon 1.1 shocks designed specifically for modern Super Duty platforms. 

Available in multiple configurations including standard radius arm drop brackets and upgraded heavy-duty replacement radius arms, these systems support oversized wheel and tire combinations while maintaining OEM-style steering geometry and ride comfort. Select Ford applications are available for trucks equipped with camper spring packages. Now Available at LEER!

 

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Features & Specifications

Product Type: Big Lift Suspension System
Brand: ReadyLIFT
Material: Heavy-duty fabricated steel suspension components
Finish Options: Black powder-coated finish
Mounting Type: Complete bolt-on suspension lift system

Fitment:

• 2019–2025 Chevrolet Silverado 1500 Trail Boss 4WD
• 2019–2025 GMC Sierra 1500 AT4 4WD
• 2017–2025 Ford F-250 Super Duty 4WD
• 2017–2025 Ford F-350 Super Duty 4WD

Lift Height: 4 inches
Maximum Tire Size: Up to 37x12.50 depending on application
Shock Package: Falcon 1.1 monotube shocks
Design: Premium coil spring and big lift suspension systems

Functionality:

• Improved ground clearance
• Enhanced off-road capability
• Larger tire clearance
• Improved suspension geometry
• OEM-style ride quality retention
• Maintained steering performance

 

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Available Options

The ReadyLIFT 4" Big Lift Kit w/Falcon 1.1 Shocks is available in:

Vehicle Fitments

• 2019–2023 Chevrolet Silverado 1500 Trail Boss 4WD
• 2019–2023 GMC Sierra 1500 AT4 4WD
• 2025 Chevrolet Silverado 1500 Trail Boss 4WD
• 2025 GMC Sierra 1500 AT4 4WD
• 2017–2022 Ford F-250 Super Duty Diesel 4WD
• 2017–2022 Ford F-350 Super Duty Diesel 4WD
• 2023–2025 Ford F-250 Super Duty 4WD
• 2023–2025 Ford F-350 Super Duty 4WD

Finish Options

• Black powder-coated suspension components
• Falcon shock finish
• Heavy-duty fabricated steel finish

Configurations

• 4-inch big lift suspension configuration
• Falcon 1.1 monotube shock setup
• Coil spring lift configuration
• Radius arm drop bracket setup
• Heavy-duty replacement radius arm setup
• Differential drop bracket configuration
• Tubular upper control arm setup
• Rear lift block configuration
• Camper package-compatible configuration
• Bolt-on suspension installation system

Choose the ReadyLIFT 4-inch suspension system with Falcon shocks if you want premium ride quality, improved off-road capability, and aggressive lifted truck styling without excessive ride height.

 

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Why Choose the ReadyLIFT 4" Big Lift Kit w/Falcon 1.1 Shocks?

This product is ideal for customers who want improved ride height and premium suspension performance while maintaining towing capability and everyday drivability.

• Adds 4 inches of lift for improved stance and increased ground clearance
• Includes Falcon 1.1 monotube shocks for improved ride comfort and damping control
• Supports oversized wheel and tire combinations on compatible applications
• Available with heavy-duty replacement radius arms for additional strength and suspension articulation
• Maintains suspension geometry using application-specific correction hardware
• Provides complete bolt-on installation with vehicle-specific engineering

 

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What’s Included

• Heavy-duty front crossmembers
• Differential drop brackets
• Falcon 1.1 monotube shocks
• Custom wound front coil springs
• Radius arm drop brackets or replacement radius arms
• Track bar relocation brackets
• Tubular upper control arms
• Lifted steering knuckles
• Rear lift blocks
• Sway bar relocation hardware
• Brake line relocation brackets
• Application-specific mounting hardware
• Installation instructions

 

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Installation Notes

• Professional installation is strongly recommended
• Alignment inspection is required after installation
• Every wheel and tire combination should be test fit before final installation
• GM systems engineered specifically for Trail Boss and AT4 factory-lifted applications 
• Ford Super Duty systems available with upgraded heavy-duty replacement radius arms 
• Camper package-specific systems available for select 2017–2022 Super Duty diesel applications 
• Minor trimming may be required depending on wheel width and tire offset
• Ride quality and final lift height may vary depending on trim level and suspension condition
• Headlamp aim should be checked and adjusted after installation

 

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Tire Fitment Notes

ReadyLIFT confirms support for oversized tire configurations up to 37x12.50-inch tires on select applications depending on wheel width, wheel offset, and tire manufacturer specifications. Some aggressive wheel and tire combinations may require minor trimming.

 

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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.