Tuff Country 55900 4.5" Lift Kit Non-Knuckle Design with Rear Blocks & U-Bolts No Shocks
Tuff Country
55900
Pairs well with
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Limited Lifetime Warranty
Made in the USA
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Tuff Country 55900 4.5" Lift Kit Non-Knuckle Design with Rear Blocks & U-Bolts No Shocks
Product Details
Description
Upgrade your 1999–2004 Toyota Tundra 2WD/4WD with the Tuff Country 55900 4.5-inch Lift Kit. This non-knuckle design raises the rear on a level platform and supports up to 33-inch tires, while preserving near-stock front-end geometry for a balanced, capable ride.
- Lift Height: 4.5-inch overall lift designed to level the stance on Tundra models from 1999 to 2004.
- Rear Suspension Method: Rear blocks and U-bolts provide a solid, reliable lift for a dependable off-road setup.
- Front Struts Compatibility: Front struts can be retained, maintaining familiar steering feel and ride characteristics.
- Shocks Included: No shocks are included; factory-length shocks must be replaced with extended rear shocks for proper installation.
- Rim/Wheel Compatibility: Factory rims will not fit; requires wheels with 4.75" backspacing or less.
- Sub-Frame Construction: One-piece sub-frame increases strength and durability under load and rough terrain.
- Upper Coil/Strut Spacer: Keeps ride quality closer to stock while enabling the lift.
- Ball Joint: Includes a new upper ball joint with an upper ball joint spacer to maintain proper alignment.
- Tire Fitment: Enables use of 33" x 12.5" tires for added ground clearance and traction.
- Made In: Made in the USA, reflecting quality manufacturing standards.
- Warranty: Lifetime limited warranty on the kit for long-term confidence.
- Brand Value: Tuff Country’s trusted suspension lineage with over 25 years of experience backing lift kits.
With this kit installed, your Tundra gains enhanced ground clearance for off-road trails and rugged terrain, plus a more aggressive stance that accommodates larger tires without a complicated overhaul. The design emphasizes durability—a reinforced one-piece sub-frame, strategic spacers, and a precise ball joint setup—so you can tackle trails with confidence. Since shocks aren’t included, pair the kit with extended rear shocks to tailor your ride quality. This American-made lift from a seasoned brand offers a reliable, long-term upgrade backed by a lifetime warranty and dedicated support.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 1999-2004 | Toyota | Tundra | 2WD | |
| 1999-2004 | Toyota | Tundra | 4WD |
Specifications:
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.