Tuff Country 55906KN 5" Lift Kit with Knuckles 1 Piece Sub-Frame Rear Blocks and U-Bolts with SX8000 Shocks
Tuff Country
55906KN
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Tuff Country 55906KN 5" Lift Kit with Knuckles 1 Piece Sub-Frame Rear Blocks and U-Bolts with SX8000 Shocks
Product Details
Description
Transform your 2004 Toyota Tundra 4WD with the Tuff Country 55906KN 5" Lift Kit. This engineered suspension upgrade adds serious ground clearance while preserving ride quality, giving you the confidence to tackle tougher trails and everyday drives alike.
- Lift Height: 5" front and 4" rear, designed to accommodate up to 33" tires (recommended size: 33" x 12.5").
- Knuckles & Spindles: Heavy‑duty replacement knuckles with upper ball joints and bearings pressed into new spindles for improved steering geometry and durability.
- One‑Piece Sub‑Frame: A rigid, integrated sub-frame adds strength and predictable alignment under load and articulation.
- Shocks Included: SX8000 nitro gas shocks are included for both ends, delivering consistent damping and a controlled, confident ride.
- Rear Suspension Hardware: Includes rear blocks and U‑bolts to complete the axle mounting and geometry changes.
- Ride Retention & Fit: Upper coil/strut spacers help maintain a near‑factory ride feel; front stock struts can be retained for a smoother transition.
- Rim & ABS Compatibility: Factory rims will not fit with this lift; rims with 4.5" backspacing or less are required. Designed to fit with ABS brakes and automatic hubs; vehicles without ABS require optional ABS plugs.
- Warranty & Expertise: Backed by a limited lifetime warranty; built by Tuff Country, a brand with over 35 years of suspension expertise and a reputation for reliable, value‑driven kits.
Boost your off‑road capability with a kit that’s purpose‑built for the 2004 Toyota Tundra. This lift kit provides a strong combination of kit‑level components—knuckles, a solid one‑piece sub‑frame, SX8000 shocks, and precise alignment—while offering a practical path to larger tires and a durable, long‑lasting suspension upgrade. It’s ideal for truck owners who want more ground clearance, improved approach/departure angles, and a confident, controllable ride both on trails and on the highway.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2004 | Toyota | Tundra | 2WD | |
| 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.
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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.