Tuff Country 14059KN 4" Lift Kit Upper Control Arm Kit with Rear Blocks & U-Bolts with SX8000 Shocks
Tuff Country
14059KN
Pairs well with
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Tuff Country 14059KN 4" Lift Kit Upper Control Arm Kit with Rear Blocks & U-Bolts with SX8000 Shocks
Product Details
Description
Elevate your Chevy Silverado 1500 or GMC Sierra 1500 4WD with the Tuff Country 14059KN 4" Lift Kit SX8000 Shocks. Built for 2014–2018 models that use factory one-piece upper arms, this kit delivers a confident stance and enhanced off-road capability without a complicated install.
- Lift Height: 4" front / 2" rear
- Shocks Included: SX8000 shocks are included for a complete, ready-to-install upgrade
- Upper Control Arm Drop / Strut Spacer Kit: Maintains proper suspension geometry with the factory upper arms
- No Drilling Required: Install without modifying the frame or body
- Rear Suspension Hardware: Rear blocks and U-bolts included for a secure, balanced lift
- Rim Backspacing Requirement: Requires new rims with 4.5" backspacing; factory rims will not fit
- Wheel/Tire Fit: Recommends 33" x 12.5" tires for optimal look and clearance
- Fitment Scope: 2014–2018 Chevy Silverado 1500 4WD and 2014–2018 GMC Sierra 1500 4WD with OE cast steel upper arms
- Quality & Craftsmanship: Proudly made in the USA with durable, purpose-built components
- Warranty: Backed by a Limited Lifetime Warranty
This 4" lift balances rugged capability with a near-factory ride, thanks to the integrated upper control arm drop and compatible strut spacers. The kit’s complete hardware set, including rear blocks, U-bolts, and SX8000 shocks, means fewer trips to the parts counter and a more straightforward installation. By design, it supports larger tires for improved ground clearance and aggressive styling, while maintaining steering feel and control for daily driving. Note the rim backspacing and steering-control considerations to ensure a smooth upgrade that stands the test of time.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2014-2018 | Chevy | Silverado 1500 | 4WD | with One Piece OE Cast Steel Upper Arms. Will not fit with Magnetic Ride Control or Air Suspension |
| 2014-2018 | GMC | Sierra 1500 | 4WD | with One Piece OE Cast Steel Upper 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.
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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.