LSK Suspension Duramax Front Long Travel Kit (2011-2019)

Part# LSK1109


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LSK Suspension Duramax Front Long Travel Kit

Fits 2011-2019 Silverado/Sierra 2500HD 2wd & 4wd Vehicles

Part# LSK1109

*Shocks are not included, please give us a call for shock recommendation*

Are you looking for a pre-runner kit for your Duramax Diesel truck?  LSK suspension has a high quality kit for the Duramax Truck, with 12.5" of wheel travel ad a 4.5" wider track width you can convert your Duramax into a serious pre runner.  LSK uses 1.0" & 1.5" uniball pivots on the control arms and spindles, it will hold your truck together for years without wearing out. Check this kit out to make your Duramax seriously capable.


  • Wheel Travel: 12.5" (12-13" typical, additional travel possible with special configured RCV axle assemblies and depending on limit strap/bump stop/ shock configurations)
  • Wheel Base: Extended 1.25" longer
  • Track Width: Extended 4.50" each side (89-90" Overall Track Width*)
  • Lower Uniball pivot: 1.5"
  • Upper Uniball pivot: 1.0"



  • Spindles
  • Lower Arms
  • Upper Arms
  • Shock Tower
  • Complete steering from centerlink out
  • Includes WELD ON centerlink adapters
  • Grade 8 hardware throughout


  • 8" 2.5" Coilovers (NOT INCLUDED IN KIT ABOVE)
  • 8" 3.0" Bypasses (NOT INCLUDED IN KIT ABOVE)
  • Welding Is Required - This Is Not A Bolt On System And Will Require Proficient Knowledge In Fabrication To Perform The Installation 
  • Extended Brake Lines (Minimum 31" Line End To End)
  • Shock Hoop (Either LSK Pre-Bent Available Below Or Custom Tie In To Shock Tower)
  • Possible Extension Of Factory ABS Sensor Line (Depends On Wire Routing)
  • Bumpstops - Can Be Configured To Bump Off Of Lower Control Arm, Upper Control Arm Or Spindle Uniball Cup - Typically Recommend a King 2.0" x 2" Stroke With King Fabricated Cans
  • Limit Straps - Recommend 10" Limit Strap With Adjustable Clevis Kit (Can be Purchased In The Builders Components Section of Our Store)
  • 4wd Equipped Trucks Must Run An Extended Axle Setup Or Retain The Factory Outer CV Assembly If Deleting The 4x4 System 

Important Notes:

  • Welding is required - this is not a bolt on system and will require proficient knowledge in fabrication to perform the installation
  • This particular kit uses a 8" 2.5" coilover and an 8" 3.0" or 2.5" 3-Tube bypass, a larger bypass can be run but would require a custom tube layout
  • Coilovers require a specific fitting layout - if using your own coilovers please contact our sales team to make sure the configuration you have will work with this kit
  • Shock hoop is  listed as an option because most installers wish to add an engine cage but may want to run their own layout - choose this option if you would like to use our supplied shock hoop by itself or as a base for your installer to build an engine cage off of. Optional Shock Hoops are constructed out of 1 1/2" .120 wall DOM tubing
  • Kits are normally in stock, however, a lead time of 3-4 weeks for a finished batch is typical on this kit when sold out. Please contact our sales team to verify if product is in stock (While it displays "In Stock" on the website, inventory levels are constantly changing and is not updated in real time)
  • Extended axle shafts are configured to use OEM inner and outer CV joints - RCV HD joints can be added for an additional cost, please contact our sales team to have this option added to your order
  • Coilover/Bypass lead time depends solely on King Shock Technologies. Typical lead time can be anywhere from 8-10 weeks on standard King blue finishes.