Tuff Country 14058KN 4" Lift Kit with Upper Control Arms with SX8000 Shocks
Tuff Country
14058KN
Pairs well with
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Limited Lifetime Warranty
Made in the USA
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Tuff Country 14058KN 4" Lift Kit with Upper Control Arms with SX8000 Shocks
Product Details
Description
Elevate your GM full-size SUV with the Tuff Country 14058KN 4" Lift Kit with Avalanche SX8000 Shocks. Designed for 2007–2013 Chevy Tahoe, Suburban 1500 4WD, and GMC Yukon/Yukon XL 1500 4WD, this kit delivers rugged capability without sacrificing ride quality. Built by a brand with more than 35 years of suspension experience, it’s the practical choice for those seeking real-world performance and value.
- Lift Height: 4" front / 2" rear lift to provide notable ground clearance while preserving a comfortable on-road feel.
- Includes Upper Control Arms: Integrated upper control arm drop to maintain proper axle alignment and improved ride geometry.
- Avalanche SX8000 Shocks: Front shocks included for enhanced damping and control over rough surfaces.
- No Drilling Required: Bolt-on design that minimizes hassle during installation.
- Rear Coil Spacers: Keeps rear suspension geometry consistent for a steady ride with the lifted stance.
- Rim Backspacing Requirement: Requires rims with 4.5" backspacing; factory rims will not fit with this kit.
- Tire Fit: Supports up to 33" x 12.5" tires for a bold, capable look and improved traction off-road.
- Made in the USA: Proudly manufactured in the United States with a focus on quality and durability.
- Warranty: Limited lifetime warranty for long-term peace of mind.
- Fitment Notes: Excludes models equipped with Magnetic Ride Control or factory Air Suspension; check backspacing and rim compatibility before purchase.
The 14058KN lift kit is purpose-built to unlock serious off-road potential while keeping daily driving practical. With the combination of upgraded upper control arms, reliable SX8000 shocks, and a thoughtful mounting design, you’ll notice improved approach/departure angles, better wheel travel, and a more composed ride over challenging terrain. It’s an especially good match for drivers who want a confident, capable SUV ready for weekend adventures or practical year-round use, without sacrificing comfort or reliability.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2007-2015 | Chevy | Avalanche 1500 | 4WD | Will not fit with Magnetic Ride Control or Air Suspension |
| 2007-2013 | Chevy | Suburban 1500 | 4WD | Will not fit with Magnetic Ride Control or Air Suspension |
| 2007-2013 | Chevy | Tahoe | 4WD | Will not fit with Magnetic Ride Control or Air Suspension |
| 2007-2013 | GMC | Yukon 1500 | 4WD | Will not fit with Magnetic Ride Control or Air Suspension |
| 2007-2013 | GMC | Yukon XL 1500 | 4WD | Will not fit with Magnetic Ride Control or Air Suspension |
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.