Superlift K150 GMC Sierra 2500HD/3500HD 2011-2019 6" Suspension Knuckle Kit with SL Shocks

Superlift K150 GMC Sierra 2500HD/3500HD 2011-2019 6" Suspension Knuckle Kit with SL Shocks

Regular price $1,919.99
$1,919.99 Sale price Regular price $2,495.99

Lift: 6 in.

What's included:

  • * Steering knuckles
  • * Crossmembers
  • * No drop torsion bar brackets
  • * Bump stops
  • * Belly pan
  • * Brakeline brackets
  • * Front sway bar links
  • * Installation hardware
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Product Details

Superlift 6" Knuckle Kit K150


  • This is a complete 6” lift kit for the 2011-2019 Chevy Silverado and GMC Sierra 2500HD and 3500HD
  • Provides 6” of Lift height
  • Does not fit Dually models
  • Does not work with Magnetic Ride Control Models
  • Does Not work with Factory Wheels


Superlift's 6-Inch Lift kit for the 2011-2019 Silverado and Sierra 2500HD and 3500 HD features a unique "NO DROP" Torsion Bar relocation bracket. This innovative design keeps the torsion bar crossmember elevated and in the stock location, maximizing ground clearance at the frame. This not only provides a clean aesthetic but also helps prevent damage to the torsion bar assembly during off-roading adventures.

Precision CNC machined steering knuckles and heavy-duty lower control arm crossmembers are integral components of the Superlift kit, ensuring that your Silverado or Sierra maintains perfect alignment specifications. This meticulous engineering contributes to the longevity and performance of your vehicle, providing reliable handling and alignment over time.

The kit offers versatile shock options to cater to different preferences and performance needs. You can choose from Superlift Shocks, Front and Rear Bilstein 5100 Series Shocks, or Front and Rear Fox® Performance Series 2.0 IFP shocks. This customization allows you to tailor the suspension setup to your specific requirements, whether it's for a smooth on-road ride or enhanced off-road performance.

The rear lift in this kit is accomplished using a heavy-duty fabricated rear block. The main axle U-bolts are securely held in place by both upper and lower plates, with additional secondary U-bolts attached to the OE leaf spring. This design helps reduce pinion wrap, contributing to a more stable and controlled rear suspension setup.

This comprehensive kit comes equipped with essential components for a complete upgrade, including steering knuckles, crossmembers, torsion bar brackets, front sway bar links, a belly pan, brake line brackets, bump stops, a rear block kit, and shocks. With all the necessary parts included, this kit ensures that your Silverado or Sierra maintains handling and performance characteristics similar to those of a stock truck, while enjoying the benefits of the upgraded components.

Price Guarantee

Lowest Price Guarantee

We work hard to ensure that the prices of our aftermarket truck bumpers are the best available online. That’s why we guarantee that you’ll get the lowest price on all of our bumpers and accessories. Here’s how it works:

  • We guarantee that the price of our aftermarket truck bumpers is the best available online. If you find an online store that offers a specific model at a lower price, let us know and we’ll match their price for your purchase.
  • If you find that the exact bumper at an even lower price online within 6 months after your purchase, we will refund you the difference. Simply send a price difference refund request to This applies even to the prices from our own store at
  • The competitor must be an online retailer with no physical stores and they must be an authorized dealer of the bumpers or accessories in question. The competing online store must also have the product in stock on their website for our price match guarantee to apply.
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  • Additional promos cannot be applied in addition to the price match guarantee. For example, the free gift promo cannot be added on top of the price match guarantee. Only one promotion can be applied per purchase.

Once we confirm that your order is eligible for our price match guarantee, you can be confident that you’re getting the very best deal online.

Whether you’re looking for heavy-duty truck bumpers by Ranch Hand, a winch bumper by Fab Fours, or any other aftermarket truck bumper, if you shop with BumperOnly, you’ll never have to worry about buyer’s remorse.

For any questions about our price match guarantee, feel free to get in touch.

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      Installation Guide
      SUPERLIFT comes complete with installation instruction. If you need assistance, call SUPERLIFT Products Technical Support or bring it to your local auto body shop to install.

      Please click here to download installation manual.

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