Tuff Country 16085 6" Lift Kit with Knuckles & 3 Piece Sub-Frame No Shocks
Tuff Country
16085
Pairs well with
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Limited Lifetime Warranty
Made in the USA
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Tuff Country 16085 6" Lift Kit with Knuckles & 3 Piece Sub-Frame No Shocks
Product Details
Description
Upgrade your Silverado/Sierra with the Tuff Country 16085 6" suspension lift kit — a complete, value-focused system designed for 2011–2018 Chevy Silverado 2500HD 4WD and GMC Sierra 2500HD 4WD. Featuring knuckles and a 3-piece sub-frame, it delivers extra ground clearance and room for bigger tires (35x12.5) while maintaining solid steering and durability. Note: Shocks are not included; extended shocks are required for proper installation.
- Lift Height: 6" front / 4" rear lift for 2011–2018 Silverado 2500HD 4WD and GMC Sierra 2500HD 4WD
- Knuckles: New steering knuckles help maintain geometry and eliminate the need to drop upper control arms
- Sub-frame: Multi-piece, heavy-duty sub-frame with skid plates for protection and rigidity
- Tire Clearance: Designed to accommodate larger tires, specifically 35" x 12.5" tires
- Bump Stops: Relocated front and rear bump stops to preserve articulation and ride height
- Rim Fit & Backspacing: Factory rims will not fit; requires rims with additional backspacing (see instructions for sizing)
- Installation Time: Approximately 8–10 hours on average
- Warranty: Tuff Country limited lifetime warranty for long-term confidence
- Shocks: Shocks are not included; must be replaced with extended shocks for correct installation
- Vehicle Compatibility: Intended for 2011–2018 Chevy Silverado 2500HD 4WD and 2011–2018 GMC Sierra 2500HD 4WD; not compatible with dually models
Elevate your heavy-duty truck with confident, durable suspension that supports larger tires and maintains steering feel. The knuckle design preserves steering geometry during lift, while the three-piece sub-frame and skid plates add stiffness and protection. Relocating bump stops ensures predictable articulation, enhancing on- and off-road performance. With a straightforward install window of roughly 8–10 hours and a limited lifetime warranty from a brand with over 25 years of experience, this kit offers a thoughtful balance of capability and value for daily drivers and weekend explorers alike.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2011-2018 | Chevy | Silverado 2500HD | 4WD | |
| 2011-2018 | 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.