Tuff Country 16985KN 6" Lift Kit with Knuckles and 1 Piece Sub-Frame with SX8000 Shocks
Tuff Country
16985KN
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Tuff Country 16985KN 6" Lift Kit with Knuckles and 1 Piece Sub-Frame with SX8000 Shocks
Product Details
Description
The Tuff Country 16985KN 6-inch lift kit is a bolt-on suspension upgrade designed for 2001–2010 Chevy Silverado 2500HD 4WD and GMC Sierra 2500HD 4WD with a torsion-bar front end. It pairs knuckles, a one-piece sub-frame, and SX8000 shocks to deliver a sturdy, value-driven lift that expands your truck’s off-road capability.
- Lift height: 6" front / 4" rear (levels front with rear) to restore a balanced, aggressive stance.
- Knuckles & 1‑Piece Sub-Frame: New steering knuckles plus a rigid one-piece sub-frame improve steering geometry, reduce squeaks and rattles, and provide increased front-end strength.
- Shocks included: SX8000 shocks are included to match the lift and maintain controlled damping across highway and trail surfaces.
- Simple bolt‑on installation: Engineered for a straightforward, vehicle‑specific fit with minimal fabrication.
- Comprehensive hardware: Includes lateral compression arms, mounting brackets, and all necessary components for a complete upgrade.
- Tire & rim guidance: Designed to run 35" x 12.5" tires; rims must have 4.5" backspacing or less. Factory rims will not fit this kit.
- Compatibility notes: Fits 2001–2010 Silverado 2500HD 4WD and 2001–2010 GMC Sierra 2500HD 4WD with torsion-bar front ends; not compatible with dually models, coil-over front ends, or Stabilitrak-equipped vehicles. Exhaust modification may be required on gas-engine models.
- Warranty & support: Backed by a limited lifetime warranty and from the world’s #1 retailer of Tuff Country products, with expert knowledge and reliable customer service.
This kit is ideal for buyers seeking a purposeful lift to improve ground clearance, enable substantial tire fitment, and enhance overall off-road capability without sacrificing reliability. The installation typically takes about 8–10 hours and, once installed, delivers a more commanding ride height while preserving essential suspension geometry. Whether you’re tackling rough dirt roads or aiming for a tougher street presence, this Tuff Country kit brings proven engineering and durable parts to your Silverado/Sierra 2500HD 4WD.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2001-2010 | Chevy | Silverado 2500HD | 4WD | Will Not Fit Dually Models. |
| 2001-2010 | 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.
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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.