Tuff Country 55900KH 4.5" Lift Kit Non-Knuckle Design with Rear Blocks & U-Bolts with SX6000 Shocks
Tuff Country
55900KH
Pairs well with
Expert Post-Purchase Assistance
Limited Lifetime Warranty
Made in the USA
Free Shipping on Orders over $150
Tuff Country 55900KH 4.5" Lift Kit Non-Knuckle Design with Rear Blocks & U-Bolts with SX6000 Shocks
Product Details
Description
Upgrade your 1999‑2004 Toyota Tundra 4WD with the Tuff Country 55900KH 4.5-inch Lift Kit. This complete, non‑knuckle design system combines rugged hardware with reliable shocks to deliver a level stance and room for larger tires, all backed by Tuff Country’s decades of suspension expertise.
- Lift Height: 4.5 inches of overall lift designed for balanced stance and improved ground clearance on a 1999–2004 Toyota Tundra 4WD.
- Shocks Included: SX6000 shocks are included to provide better damping for both highway driving and off‑road conditions.
- Rear Blocks & U‑Bolts: incorporates rear lift blocks and extended U‑bolts for secure, durable mounting.
- Non‑Knuckle Design: front geometry is preserved by retaining stock front struts, simplifying installation and maintaining familiar steering feel.
- One‑Piece Sub‑Frame: enhances rigidity and durability for long‑term performance under load and rock‑strewn trails.
- Upper Coil/Strut Spacer: maintains a near‑factory ride height at rest while delivering the lifted stance.
- New Ball Joint Included: upper ball joint spacer improves steering geometry and helps maintain proper alignment.
- Tire Fitment: designed to accommodate up to 33" x 12.5" tires for rugged looks and improved off‑road capability.
- Made in USA: manufactured in the United States with dedicated quality control.
- Warranty: backed by a limited lifetime warranty for long‑term peace of mind.
- Vehicle Fitment: specifically engineered for 1999–2004 Toyota Tundra 2WD and 4WD models.
- Installation Note: factory length shocks must be replaced with extended rear shocks for proper installation; front struts can be retained.
This lift kit is ideal for truck owners seeking a straightforward, value‑driven upgrade that yields a level stance and room for larger tires, without a complete front‑end redesign. With the included SX6000 shocks, reinforced rear mounting, and durable American‑made components, you gain improved ground clearance for light off‑roading, better approach/departure angles, and a more commanding on‑road presence. Built on Tuff Country’s 35+ years of suspension experience, this kit combines practical engineering with real‑world usability and a solid lifetime warranty for lasting confidence.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 1999-2004 | Toyota | Tundra | 2WD | |
| 1999-2004 | Toyota | Tundra | 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.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
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.