2020-2024 Duramax 8" MAX 3.3 Lift Kit w/ Falcon 3.3 Shocks (42-30840)

Fits

There isn't a more imposing upgrade you can do to these new style Duramax pick-ups than a ReadyLift 8" MAX 3.3 Lift Kit! Engineered to improve stance, performance, and capability, this kit includes everything necessary to conquer any terrain with precise suspension control and articulation, all while allowing you to run 38" tires!

This big lift features performance-tuned Falcon 3.3 dampers with 3 convenient Fast-Adjust settings: Sport/daily, Moderate Tow/Haul, and Heavy Tow/Haul. Laser-cut fabricated HD steel cross-members, cast iron OE-style knuckles with perfect geometry built-in, torsion arm brackets, and forged torsion keys provide just the right amount of indexing.

Part Number: 42-30840

• 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 cross members
  
• Xtreme-Duty fabricated 4130 chromoly steel upper control arms
• 3.3 Fast-Adjust Dampers 
• 3-Position Fast Adjust Knob 
• 8-Position Micro Adjust Dial offers refined damping adjustments
• Reservoir design increases nitrogen to oil ratio for consistent damping over wide temperature ranges.
• Hard Anodized Large Bore 6061-T6 Aluminum Shock Body for impact and corrosion resistance as well as increased oil volume for consistent performance.
• VOD (Volume Optimized Damping) features a digressive linear piston for quicker ramp-up for reduced body roll and an overall increase in damping to reduce bottom out when pushed to the limit
• Red Line high VI shock oil for consistent performance across all temperatures from -50F to 450F with anti-wear and lubricity agents

Includes:

• HD welded steel cross members
• HD iron knuckles
• Cast iron rear lift blocks with integrated bump stop landing pads
• Forged torsion keys with the proper amount of indexing
• HD skid plate
• Assorted hardware and accessories
• x4 Falcon 3.3 Shocks

Tire Fitment

• 38" Maximum tire diameter
• 38 x 12.50 for no rub on a 9" wide wheel with 0 offset

• The Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT.
• Some GM HD trucks equipped with a Tow Package may require custom-length U-bolts purchased separately. 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 Suspension Inc. and/or Dirty Diesel Customs are NOT responsible for any damage or failure resulting from improper installation.  
  
• Click Here to view installation instructions