Tuff Country 14159KN 4" Lift Kit Upper Control Arm Kit with Rear Blocks & U-Bolts with SX8000 Shocks
Tuff Country
14159KN
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Limited Lifetime Warranty
Made in the USA
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Tuff Country 14159KN 4" Lift Kit Upper Control Arm Kit with Rear Blocks & U-Bolts with SX8000 Shocks
Product Details
Description
The Tuff Country 14159KN 4" Lift Kit with SX8000 Shocks is a complete, ready-to-install suspension upgrade designed for 2014–2018 Chevy Silverado 1500 and GMC Sierra 1500 4WD pickups. It delivers a true 4-inch front lift (2-inch rear) while preserving ride quality and alignment, helping you tackle tougher roads and bigger tires with confidence.
- Kit Type: 4" lift system for Silverado 1500 / Sierra 1500 4WD, compatible with Aluminum OE Upper Control Arms or Stamped Two Piece Steel OE Arms.
- Shocks Included: SX8000 shocks included for a complete package ready to install.
- Core Components: Upper control arm drop / strut spacer kit, rear blocks, U-bolts, mounting brackets, and all necessary hardware.
- Ride Quality: Maintains a near-factory ride by balancing front lift with a stabilized rear height and proven damper tuning.
- Installation Notes: No drilling required; requires new rims with 4.5" backspacing. Factory rims will not fit with this lift.
- Tire and Rim Fitment: Accommodates up to 33" x 12.5" tires with proper backspacing and clearance.
- Warranty: Backed by a Limited Lifetime Warranty, reflecting Tuff Country’s decades of suspension expertise.
- Made in the USA: Built and assembled in the United States for durable, quality-focused engineering.
This lift kit is ideal for truck owners who want enhanced ground clearance for off-road adventures while preserving everyday drivability. The combination of upper control arm drops and strut spacers maintains steering geometry and predictable handling, so daily commutes feel stable and controlled. Rear blocks and U‑bolts deliver a balanced stance without compromising payload capability. With included SX8000 shocks, you’ll notice improved damping over rough roads and washboard surfaces, making longer trips more comfortable. If you’re upgrading a Silverado or Sierra 1500 and want a durable, American-made kit with solid after-sales support, this Tuff Country system is a thoughtful, purpose-built choice.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2014-2018 | Chevy | Silverado 1500 | 4WD | with Aluminum OE Arms Or Stamped Two Piece Steel OE Arms. Will not fit with Magnetic Ride Control or Air Suspension |
| 2014-2018 | GMC | Sierra 1500 | 4WD | with Aluminum OE Arms Or Stamped Two Piece Steel OE Arms. 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.