Product Details

The ReadyLift 3" SST Lift Kit w/Fabricated Control Arms And Falcon 2.1 Monotube Shocks is made for the 2020-2025 GMC Sierra 2500 HD, giving it more ground clearance and room for larger tires.

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.

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.

Features

  • NEW Falcon 2.1 Monotube shocks front and rear
  • 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"
  • 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

Installation Instructions

ReadyLIFT installation instructions (PDF)

Specifications
Part Number 69-30321
Part Name ReadyLift 3" SST Lift Kit w/Fabricated Control Arms And Falcon 2.1 Monotube Shocks
Vehicle 2020-2025 GMC Sierra 2500 HD
Placement Front & Rear
Lift - Front 3"
Lift - Rear 1.5"
Max Tire Size 35"
Shocks Included Yes
Install Time 5+ Hours
Weight 84.50 lb
UPC 194933440801
Notes
  • ReadyLIFT application: 3" SST Lift Kit With Fabricated Control Arms And Falcon 2.1 Monotube Shocks- GM Silverado / Sierra 2500HD/3500HD 2020-2025.
  • Note: Does not work with AT4X or ZR2 models.

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelNotes
2020GMCSierra 2500 HD
2021GMCSierra 2500 HD
2022GMCSierra 2500 HD
2023GMCSierra 2500 HD
2024GMCSierra 2500 HD
2025GMCSierra 2500 HD

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