Tuff Country 16992KN 6" Lift Kit with Knuckles and 3 Piece Sub-Frame with SX8000 Shocks
Tuff Country
16992KN
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Tuff Country 16992KN 6" Lift Kit with Knuckles and 3 Piece Sub-Frame with SX8000 Shocks
Product Details
Description
Upgrade your GM 4x4 with the Tuff Country 16992KN 6" Lift Kit, a complete bolt-on suspension solution designed for daily driving and serious off-road use. Built for 2001–2006 Chevy Silverado 1500HD 4WD and 2001–2004 Chevy Avalanche 2500 4WD, this kit combines rugged hardware with smarter engineering to deliver both capability and reliability.
- Front/Rear Lift: 6" front and 4" rear lift to achieve a commanding stance while preserving suspension geometry.
- New Steering Knuckles: eliminates the need to drop upper control arms, simplifying installation and maintaining alignment integrity.
- Three-Piece Sub-Frame: modular design that makes installation easier and quicker than traditional single-piece frames.
- Includes Lateral Compression Arms: integrated arms and mounts support precise steering and stable handling on rough terrain.
- Shocks Included: 4 SX8000 shocks tuned for improved damping and ride quality over uneven surfaces (with Shocks).
- Tire Compatibility: supports up to 36" x 12.5" tires for enhanced off-road traction without compromising safety.
- Comprehensive Hardware: includes front/rear cross members, skid plate, axle spacers, U-bolts, carrier bearing drop kit, brake line relocating kit, and all necessary hardware.
- Additional Fitment Components: differential drop brackets, torsion bar drop brackets, and 4" cast iron lift blocks included for a complete upgrade.
- Finish & Durability: durable black powder coat built to withstand off-road exposure and weathering.
- Warranty: backed by Tuff Country’s limited lifetime warranty for long-term peace of mind.
- Installation Time: average install time is 8–10 hours for a thorough, bolt-on upgrade.
- Rim & Wheel Note: factory rims will not fit; a rim with 4.5" backspacing or less is required (new rims may be necessary).
- OEM-Grade Fitment: designed to replicate your factory ride while delivering significant off-road durability and performance.
This kit is crafted for drivers who want a capable, re-usable suspension upgrade that doesn’t compromise daily usability. The combination of knuckles, a multi-piece sub-frame, and the SX8000 shocks delivers a balanced experience: confident on rough trails and predictable on the highway. With a focus on quality components and a straightforward bolt-on process, you’ll enjoy improved ground clearance, the ability to run larger tires, and a durable setup designed to endure years of demanding use.
| Position | Front and Rear |
|---|---|
| Drivetrain | 4WD |
| Color/Finish | Black Powder Coat |
| Recommended Tire Size | 35" x 12.50" |
| Front Lift Height | 6" |
| Rear Lift Height | 4" |
| Rim Backspacing | 4.5" or less(requires new rims) |
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2001-2004 | Chevy | Avalanche 2500 | 4WD | |
| 2001-2006 | Chevy | Silverado 1500HD | 4WD | |
| 2001-2006 | GMC | Sierra 1500HD | 4WD |
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.