3'' SST Lift Kit With Fabricated Control Arms And Falcon 2.1 Monotube Shocks- GM Silverado / Sierra 2600HD/3500HD 2020-2026

ReadyLIFT has upgraded its popular 3” SST Lift Kit for 2020+ Chevrolet Silverado and GMC Sierra 2600HD/3500HD trucks with the all-new Falcon 2.1 Monotube shocks, delivering enhanced ride quality, improved durability, and increased off-road performance.

The new Falcon 2.1 shocks feature a large 2.3” 6061-T6 Aluminum shock body for improved heat dissipation and impact resistance, paired with a precision-honed internal surface engineered for smooth, consistent damping performance. A massive 3/4” induction-hardened chrome-plated shaft helps resist rock damage, corrosion, and shaft deflection under demanding off-road and towing conditions.

The proven ReadyLIFT SST system retains its heavy-duty fabricated upper control arms, forged torsion keys, and robust rear lift components to maintain important factory ride characteristics, towing confidence, and clearance for up to 35” tires.

Key Features & Benefits:

NEW Falcon 2.1 Monotube shocks front and rear

Large 2.3” aluminum shock body for improved cooling and performance

Massive 3/4” hardened chrome-plated shock shaft for strength and durability

Heavy-duty fabricated upper control arms included

Allows for no-trim fitment of 35x12.50 tires on 20x9 0 offset wheels

Maximum fitment: 35x12.50 tires on 20x10 -18 offset wheels with minor trimming

Some fender liner trimming may vary between Silverado and Sierra applications

Maintains important factory towing and payload capability

Whether towing, daily driving, or exploring off-road terrain, the upgraded 3” SST Lift Kit delivers the aggressive stance, premium ride quality, and durability GM HD owners expect from ReadyLIFT and Falcon Performance Shocks.

• NEW Falcon 2.1 Monotube shocks front and rear
• Large 2.3” aluminum shock body for improved cooling and performance
• Massive 3/4” hardened chrome-plated shock shaft for strength and durability
• Heavy-duty fabricated upper control arms included
• Allows for no-trim fitment of 35x12.50 tires on 20x9 0 offset wheels
• Maximum fitment: 35x12.50 tires on 20x10 -18 offset wheels with minor trimming
• Some fender liner trimming may vary between Silverado and Sierra applications
• Maintains important factory towing and payload capability
• Note:  Does not work with AT4X or ZR2 models.
• Special Note:
• When setting the torsion key adjustment bolt do not exceed 27" from the wheel center to the fender edge. Exceeding this will overlift the vehicle creating a top-off condition, meaning the suspension has little to no down travel.
• The result is poor ride quality and premature wear of components.  Max width on stock wheels is 11.5".

Specifications

• California Proposition 65: 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.
• Color: Silver
• Fitment: Direct Fitment
• Front Lift Component: Torsion Key
• Front Lift Height: 3 Inches
• Front or Rear: Front and Rear
• Front Shocks: Falcon 2.1
• Install Difficulty: Difficult Requires Professional Installation
• Installation Time: 5+ Hours
• Material: Steel and Shocks
• Max Tire Size: 35 Inch
• Prop65 Chem1: Di(2-ethylhexyl)phthalate (DEHP)
• Rear Lift Component: Block and U-bolt
• Rear Lift Height: 1.5 Inches
• Rear Shocks: Falcon 2.1
• Shocks Included: Yes

Vehicle application overview

Confirm trim, engine, and installation requirements before ordering.

• 2020–2025 Chevrolet Silverado 3500 HD
• 2020–2025 GMC Sierra 2500 HD
• 2020–2025 GMC Sierra 3500 HD
• 2020–2026 Chevrolet Silverado 2500 HD
• 2020–2026 Chevrolet Silverado 3500 HD
• 2020–2026 GMC Sierra 2500 HD
• 2020–2026 GMC Sierra 3500 HD