Product Details

The ReadyLift 8" MAX3.3 Suspension System w/Falcon 3.3 Shocks And Fab UCA Arms is made for the 2020-2026 GMC Sierra 3500 HD.

Custom U-bolt length may vary by vehicle application. If the ReadyLIFT kit's standard U-bolts are too short, ReadyLIFT recommends locally sourcing custom U-bolts built to each truck's specifications.ReadyLIFT delivers a performance game changer for the popular 2020-2026 Chevy Silverado and GMC Sierra 2600/3500 HD trucks with the release of our new premium 8" MAX3.3 Suspension with 3.3 Falcon shocks. Designed to improve stance, performance, and capability, this kit includes everything necessary to clear larger wheels and tires.

With vehicle-specific performance-tuned Falcon dampers on all four corners of our kit, these lift kits provide a better-than-factory feel. The 8" kit includes a new system that pairs front 3.3 Fast Adjust shocks with rear adjustable piggyback shocks. The new 3.3 Falcon's are Fast Adjust Dampers offering a wide range of adjustability for specific terrain and/or handling characteristics with two separate knobs to tune to your preference. Falcon Performance Shocks improve performance and comfort regardless of the terrain.

Features

  • 8" Lift Kit GM HD Trucks
  • Reservoir design increases nitrogen to oil ratio for consistent damping over wide temperature ranges
  • Heavy-duty fabricated steel components utilizing 3/16? and 1/4? steel plate
  • Full-coverage differential skid plate constructed from 3/16? steel plate
  • Laser cut, CNC formed heavy-duty front/rear drop crossmembers
  • Xtreme-Duty fabricated 4130 chromoly steel upper control arms
  • 3.3 Fast Adjust Dampers offer a wide range of adjustability for specific terrain and/or handling characteristics with two separate knobs to tune to your preference.
  • 3-Position Fast Adjust Knob for Soft, Custom, and Firm Compression. Soft mode allows a partial bypass of the main piston for a softer ride

Installation Instructions

ReadyLIFT installation instructions (PDF)

Specifications
Part Number 42-30840
Part Name ReadyLift 8" MAX3.3 Suspension System w/Falcon 3.3 Shocks And Fab UCA Arms
Vehicle 2020-2026 GMC Sierra 3500 HD
Placement Front & Rear
Lift - Front 8"
Lift - Rear 6"
Max Tire Size 38"
Shocks Included Yes
Install Time 5+ Hours
Weight 425.00 lb
UPC 194933366453
Notes
  • ReadyLIFT application: 8" MAX3.3 Suspension System W/ Falcon 3.3 Shocks And Fab UCA Arms, 2020-2026 GM Silverado / Sierra 2500HD/3500HD.
  • Note: Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT. Some GM HD trucks equipped with Tow Package may require custom-length U-bolts purchased separately.

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelNotes
2020GMCSierra 3500 HD
2021GMCSierra 3500 HD
2022GMCSierra 3500 HD
2023GMCSierra 3500 HD
2024GMCSierra 3500 HD
2025GMCSierra 3500 HD
2026GMCSierra 3500 HD

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