Tuff Country 16085KN 6" Lift Kit with Knuckles & 3 Piece Sub-Frame with SX8000 Shocks
Tuff Country
16085KN
Pairs well with
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Limited Lifetime Warranty
Made in the USA
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Tuff Country 16085KN 6" Lift Kit with Knuckles & 3 Piece Sub-Frame with SX8000 Shocks
Product Details
Description
The Tuff Country 16085KN 6" Lift Kit with Knuckles, 3-Piece Sub-Frame and SX8000 Shocks is a complete suspension upgrade designed for 2011–2019 Chevrolet Silverado 2500HD 4WD and GMC Sierra 2500HD 4WD. It delivers a bold stance and enhanced off-road capability, engineered for reliable, long‑term performance with a limited lifetime warranty.
- Lift configuration: 6" front and 4" rear lift to accommodate larger tires and improve ground clearance, supporting up to 35" x 12.5" tires.
- Knuckles: Front steering knuckles designed to eliminate the need to drop upper control arms, improving steering geometry and reducing installation complexity.
- Three-piece sub-frame: Multi-piece sub-frame with heavy-duty skid plates for added rigidity and drivetrain protection.
- Relocated bump stops: Front and rear bump stops relocated to maintain proper suspension travel and ride height with the lift.
- Shocks included: SX8000 shocks included to deliver improved damping and control on and off the trail.
- Fitment notes: Factory shocks must be replaced with extended shocks for proper installation; rim with additional backspacing is required; factory rims will not fit; not compatible with dually models.
- Installation and time: Average install time estimated at 8–10 hours for a typical project experience.
- Warranty: Backed by a limited lifetime warranty, reflecting Tuff Country’s commitment to quality and long-term value.
Benefits: This lift kit unlocks true off-road capability without sacrificing everyday usability. The 6" front / 4" rear lift creates space for 35" tires, enhancing traction and approach angles while maintaining solid steering control thanks to the knuckles. The three-piece sub-frame and skid plates protect vital components during rugged adventures, and the SX8000 shocks help absorb bumps and chatter for steadier highway driving and confident off-road handling. With relocated bump stops, extended shocks, and a robust construction, you get a durable, effective solution that supports a more aggressive stance, improved mud and rock clearance, and a longer-lasting, value-driven upgrade for your 2011–2019 2500HD pickup.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2011-2019 | Chevy | Silverado 2500HD | 4WD | |
| 2011-2019 | GMC | Sierra 2500HD | 4WD | Will not fit dually model |
Specifications:
Packaging Details
FAQs
Please read our FAQs page to find out more.
Will this part fit my vehicle?
Fitment varies by year, make, model, drivetrain, and lift height. Always use the vehicle fitment selector or refer to the fitment notes on the product page before purchasing. If you’re unsure, our team can help confirm compatibility.
Are Tuff Country products street legal?
Most Tuff Country products are designed for on-road and off-road use, but local laws and regulations vary by state and country. It is the customer’s responsibility to ensure compliance with local vehicle regulations after installation.
Is professional installation required?
Professional installation is recommended but not required. Many products can be installed by experienced DIYers with proper tools. However, improper installation can affect ride quality, safety, and warranty coverage.
Will this affect my ride quality?
Tuff Country products are engineered to balance ride comfort, performance, and durability. Ride quality can change depending on lift height, vehicle setup, tire size, and other suspension components.
Are Tuff Country products covered by a warranty?
Yes. Tuff Country products are backed by a manufacturer warranty that covers defects in materials and workmanship. Warranty terms vary by product type and do not cover damage caused by misuse, improper installation, or normal wear.
Can I run larger tires with this product?
Many Tuff Country lift kits and suspension components allow for larger tire sizes, but maximum tire clearance depends on wheel offset, tire width, and vehicle configuration. Refer to the product details or contact support for guidance.
What is the return policy?
Unused, uninstalled products may be eligible for return within the stated return window. Items must be in new condition and returned in original packaging. Shipping costs and restocking fees may apply.
Who can I contact if I have questions?
Our customer support team is available to help with fitment questions, installation guidance, and order support. Reach out before purchasing if you want to ensure you’re selecting the right part for your build.
Free shipping on Orders Over $75
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Selling Suspension Systems for 35+ Years
Tuff Country EZ-Ride Suspension was incorporated over 35 years ago, realizing the desperate need for quality suspension products in the after market world.