ReadyLift 3.5" Front/1" Rear SST Lift Kit (69-3411) for 11-19 GM Silverado/Sierra 2500HD

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This awesome SST Lift Kit for GMC/Chevy HD trucks includes a pair of tough, heavy-duty tubular steel Upper Control Arms engineered to match the strength of your truck. 2011-2019 HD-specific lift-oriented ReadyLIFT forged torsion keys provide an adjustable lift while maintaining the factory ride. These super strong forged torsion keys are stronger than stock with the same design and features an indexing that is unique to this kit! The 69-3411 Lift Kit also includes CNC-machined differential drop spacers which lowers the differential and puts the front CV axles into safe factory angle on 4WD trucks. 2WD trucks will not use the diff spacers. To lift the rear of your new GMC Sierra Denali or Silverado 2500 HD truck, the ReadyLIFT SST Lift Kit includes OEM style 1.0" cast iron rear lift blocks complete with new U-bolts and hardware. A Tow Package version of this kit is also available with a taller 2.0" rear lift block - use 69-3412.

Also included with this kit are new super strong tie-rod end assemblies to replace the weak factory versions. For the longest time, GM tie rod assemblies have been a weak link on all GM trucks. These heavy-duty steering assemblies install easily and incredibly stronger than the OEM units. You won't find this kind of attention to detail with any other lift kit for the new GM HD trucks! This great combination gives the new GM HD trucks a great raised stance using super strong components and allows for up to a 34" tall tire.


  • 2011-UP GM HD 3.5" Tubular Arm SST Lift Kit w/o shocks
  • Max Lift: 3.5"F/1.0"R - Max Tire: 34"
  • Forged Torsion Keys w shock extensions
  • OEM Style Cast Blocks
  • Will not deform or change shape
  • No Cutting of OEM Parts or Welding
  • Maintains Factory Ride
  • If it needs it… Its in the box
  • Limited 1-Year Warranty


  • Front Lift Amount (IN): 4"
  • Rear Lift Amount (IN): 1"
  • Front Lift Type: Torsion Bar Key
  • Rear Lift Type: Leaf Spring Block
  • Maximum Tire Size: 34 x 11.50 (Wheel and tire information listed is strictly for reference. Wheels and tires must be test fit before vehicle is returned to service, due to variances in actual installed lift height and tire size from various manufacturers.)
  • Minimum Wheel Diameter: OEM
  • Wheel Offset (MM): 13
  • Wheel Backspacing (IN): 5.50
  • Shocks: Without Shock Absorbers In Kit - Shock Change Necessary
  • Shock Type: Without Shocks
  • Color: Black Components
  • WARNING CA Proposition 65: WARNING Cancer; Birth Defects; and Reproductive Harm

Tire Fitment:

  • 34" Maximum tire diameter
  • 34x11.50 for no rub on a 9" wide wheel with +12 offset
  • 18" - 295/70R18
  • 20" - 275/65R20
  • 22" - 285/55R22
  • When lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality
  • When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 8-ply (or more) E tires compared to typical OEM 6-ply C tires
  • This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness
  • The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant
  • Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience


  • Tubular Upper Control Arms
  • Forged Torsion Keys indexed for 3.5" of lift
  • Heavy Duty replacement tie rod assemblies
  • Differential drop spacers
  • 1.0" OEM style cast iron rear lift blocks with longer u-bolts


  • Single Rear Wheel Only Not for use on trucks equipped with factory TOP overload spring commonly referred to as a camper package
  • Requires the use of longer front shocks
  • Shocks not included with kit 69-3411
  • Solid Mount and even load distribution
  • Single rear wheel only
  • Not for use on trucks equipped with factory top overload spring commonly referred to as a camper package
  • 2011-2019 GM HD trucks require the use of ReadyLIFT 66-7822B Heavy Duty Torsion Key Unloading Tool

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