2011-2019 Duramax 5-6" MAX 2.1 Lift Kit w/ Falcon 2.1 Shocks (42-31540)

Fits

Upgrade your Duramax with ReadyLift's 5-6" MAX 2.1 lift kit. Engineered to improve stance, performance, and capability, this kit includes everything necessary to conquer any terrain with precise suspension control and articulation.

Part Number: 42-31540

• Vehicle-specific performance-tuned Falcon 2.1 monotube dampers on all four corners
• Improved dynamic roll control and low-speed damping
• Dramatic improvement in on-road comfort and off-road performance
• Optimized fitment for unobstructed suspension travel and articulation
• 6061-T6 aluminum alloy shock body resists Impact to protect internal components
• Smooth-honed internal shock body surface for long-term performance
• 3/4” induction-hardened chrome plated shaft resists rock damage, corrosion, and shaft buckling
• Large shaft diameter provides a wide range of adjustments on adjustable shocks
• Hard anodized 6061-T6 aluminum alloy billet piston
• 1-piece Teflon bronze piston wear band w/ O-ring
• 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
• 5”-6” lift allows up to 35 x 12.50 with a 20 x 9” with 0 offset 

Includes:

• HD welded steel cross members
• HD iron knuckles
• Cast iron rear lift blocks with integrated bump stop landing pads.
• HD skid plate
• Forged Torsion keys indexed to provide up to 6" of adjustable lift
• Assorted hardware and accessories
• x4 Falcon 2.1 Monotube Shocks

Tire Fitment

• 35" Maximum tire diameter
• 35 x 12.50 for no rub on a 9" wide wheel with -6 offset
• 18" - 35 x 12.5R18
• 20" - 35 x 12.5R20

•  The Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT.
• Some SRW (Single Rear Wheel) models may require custom U-Bolts to accommodate the factory tow package. Will not fit DRW (Dual Rear Wheel) applications without custom U-bolts. Towing Capacity will be reduced with the installation of this kit. This kit is primarily designed to only be driven in 2WD at speed on public roads, and 4WD is only to be used off-road or in adverse slow-speed conditions due to driveline vibrations at high speeds. A double cardan driveshaft may be required to help eliminate some of the high-speed 4WD front driveline vibrations when kits are 5-8'' high. 

• 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