Your Truck Deserves the Best—Not Just Another Lift Kit

Upgrade your 2025–2026 GMC Sierra or Chevrolet Silverado 1500 with the ReadyLIFT 4" SST2.1 Premium Suspension System. This complete suspension system combines additional ground clearance, improved suspension control, larger tire clearance, and heavy-duty components without requiring a traditional cut-and-weld installation.

At the core of the system are vehicle-specific Falcon 2.1 Series front coilover struts and rear shocks. These performance-tuned dampers improve comfort, handling, control, and stability during daily driving, towing, hauling, and off-road use.

The rear Falcon 2.1 shocks feature three-position Fast-Adjust control, allowing the driver to select between Sport, Moderate Tow/Haul, and Heavy Tow/Haul settings. This makes it easy to adjust the suspension for different driving conditions and vehicle loads.

Heavy-duty DOM tubular steel upper control arms with proprietary high-angle ball joints improve suspension articulation, strength, and component life. ReadyLIFT Smart Suspension Technology uses a no-cut design that helps preserve factory ride characteristics while delivering a more aggressive stance and increased capability.

Features

• Provides 4 inches of front lift on applicable standard-height models
• Trail Boss and AT4 models gain approximately 2 inches of front lift over their factory ride height
• Rear lift results on Trail Boss and AT4 models vary because of their larger factory rear blocks
• Vehicle-specific Falcon 2.1 performance dampers at all four corners
• Falcon 2.1 front coilover struts
• Three-position Fast-Adjust Falcon 2.1 rear shocks
• Sport, Moderate Tow/Haul, and Heavy Tow/Haul adjustment settings
• Improved dynamic roll control and low-speed damping
• Improved on-road comfort and off-road performance
• Optimized fitment for unobstructed suspension travel and articulation
• Heavy-duty DOM tubular steel upper control arms
• Proprietary high-angle ball joints improve articulation, durability, and component life
• Smart Suspension Technology no-cut design
• 6061-T6 aluminum-alloy shock bodies help protect internal components against impacts
• Smooth-honed internal shock-body surfaces support long-term performance
• 3/4-inch induction-hardened, chrome-plated shafts resist rock damage, corrosion, and shaft buckling
• Large-diameter shafts provide a wide range of adjustment
• Hard-anodized 6061-T6 billet-aluminum pistons
• One-piece Teflon-bronze piston wear bands with O-rings
• Includes rear lift blocks and U-bolts
• Includes 2-inch rear bump-stop extension components
• Includes required installation hardware
  

Refer to the tire fitment guide along with the year make model data. Tire fitments shown are for Maximum size and based on a no rub or no modifications required fitment. ReadyLIFT & Recon Recovery is not responsible if the listed max sizes are exceeded. Due to differences in manufacturing, dimension and inflated measurements, tire and wheel combinations should be test fit prior to installation.

Fitment

• 2025–2026 Chevrolet Silverado 1500
  • Standard Models: Max Tire: 295/55R20 | Wheel Size: 20x9" | Offset: 0
  • Trail Boss: Max Tire: 295/65R20 | Wheel Size: 20x9" | Offset: 0
• 2025–2026 GMC Sierra 1500
  • Standard Models: Max Tire: 295/55R20 | Wheel Size: 20x9" | Offset: 0
  • AT4: Max Tire: 305/55R20 | Wheel Size: 20x9" | Offset: 0
    

Fitment Notes

• Some trimming may be required depending on the tire manufacturer and tread design
• Trail Boss and AT4 models gain approximately 2 inches of front lift over their factory ride height
• Rear lift results on Trail Boss and AT4 models differ because of their larger factory rear blocks
• Use of the Auto 4 Hi feature is not recommended
• Fitment has not been tested on ZR2 or AT4X models
• Not compatible with 2019 Classic Body LD, Limited, or Super Cruise models
• Single Cab fitment and drivability have not been validated by ReadyLIFT
• Vehicles equipped with ARC require an aftermarket bypass product; ReadyLIFT does not support the ARC bypass function
• Vehicles equipped with mono-leaf rear springs require ReadyLIFT part number 67-39530UB
• Check the vehicle’s rear leaf-spring configuration before ordering

Specifications

• Fitment: Direct Fitment
• Front or Rear: Front and Rear
• Front Lift Component: Strurt
• Front Shocks: Falcon 2.1 Coil Strut
• Rear Lift Height: 2.5 Inches
• Rear Lift Component: Block and U-bolt
• Rear Shocks: Falcon Tow Haul 2.1
• Max Tire Size: 39 Inch
• Installation Time: 5+ Hours
• Install Difficulty: Difficult Requires Professional Installation
• Color: Black
• Material: Steel
• Country of Origin: US

Warranty

READYLIFT® “NO HASSLE” PRODUCT WARRANTY

This unique “no hassle” product warranty proves their commitment to the quality of every product that ReadyLIFT produces. ReadyLIFT product warranty only extends to the Original Purchaser of any ReadyLIFT product. If it breaks, they'll give you a new part.

Any ReadyLIFT products containing missing or defective components will be covered under warranty by ReadyLIFT. Please contact Recon Recovery to initiate a warranty claim. In the event of a defective product, ReadyLIFT may request a return of the defective product (at ReadyLIFT expense) so the quality team can analyze the nature of the defect. Returning defective product will not delay the replacement part delivery.

ReadyLIFT leveling kit, block kits and lift kit products are NOT intended for off-road abuse. Any abuse or damage as a result of off-road use voids the warranty of the ReadyLIFT product. Exception: ReadyLIFT Jeep SST and Terrain Flex Lift Kits are designed for normal off-road use to complement the Jeep vehicle's off-road capability. All Jeep Lift Kit products are covered under warranty when used in recreational off-road environments.

Wearable components including, but not limited to, shocks, ball joints, heim joints, bushings, and steering extensions, are covered for up to 1-year. Labor, installation, surcharges or any other applicable fees from the original purchase are non-refundable. ReadyLIFT is not responsible for any consequential damage to vehicles.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.