2011-2019 Duramax 5-6" Lift Kit (44-30520)

Fits

Nothing better than a big lift kit that's adjustable! ReadyLift engineers and develops some of the best suspension upgrades on the market! 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 35" tires!

Custom-formed modular iron knuckles, differential drop brackets maintain factory geometry, ride quality, and handling and ensure correct CV axle angles. Torsion bar drop brackets allow you to retain OEM torsion keys and are the main component in this kit that allows you to adjust ride height from 5" to 6" with ease!

Part Number: 44-30520

• Lift adjustable from 5" to 6"
  
• Complete front/rear off-road suspension system
  
• Includes (4) Falcon 1.1 Monotube Shocks
  
• Uses your OEM factory torsion keys
• Torsion bar drop brackets
• Integrated differential drop bracket system ensures correct CV axle angles
• OEM quality cast iron rear blocks
• Steel bump stop extensions
• Skid plate
• Sway bar end links

Wheel & Tire Fitment:

• Allows for up to 35x12.50 for no rub on a 9" wide wheel with -6 offset
• Stock 20” wheels can be used or a 9'' wheel with 4.75” - 5.5” backspacing. Stock 17” or 18” cannot be run with this system due to clearance. 

• 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 that 4WD is only to be used off-road or in adverse slow-speed conditions due to drive-line 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.