Tuff Country 55907KN 5" Lift Kit with Knuckles 1 Piece Sub-Frame Rear Blocks and U-Bolts with SX8000 Shocks
Tuff Country
55907KN
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Tuff Country 55907KN 5" Lift Kit with Knuckles 1 Piece Sub-Frame Rear Blocks and U-Bolts with SX8000 Shocks
Product Details
Description
The Tuff Country 55907KN 5" Lift Kit with SX8000 Shocks is a rugged, all-in-one suspension upgrade designed for 2005–2006 Toyota Tundra owners who want capable off-road performance without sacrificing everyday drivability.
- Lift Height: 5 inches at the front and 4 inches at the rear to accommodate up to 33" tires while improving ground clearance and approach angles.
- Vehicle Fit: Specifically engineered for 2005–2006 Toyota Tundra 2WD and 4WD. Includes compatibility notes for ABS brakes and automatic hubs; vehicles without ABS require optional ABS plugs.
- Included Shocks: SX8000 nitro gas shocks are included, providing reliable damping for challenging terrain; front struts can be retained to preserve a smoother daily drive.
- Key Components: One-piece sub-frame for added Structural strength; heavy-duty replacement spindles with upper ball joints and bearings pressed into new spindles for improved durability.
- Front & Suspension Details: Upper coil/strut spacers help maintain a near-factory ride height and steering feel, while stock front struts can remain in place during installation.
- Tire & Rim Compatibility: Designed to clear 33" tires (33" x 12.5"); factory rims may not fit; rims with 4.5" backspacing or less are recommended for proper clearance.
- Hardware & Accessories: Includes rear blocks, U-bolts, and all necessary brackets and hardware for a complete install.
- Warranty & Support: Backed by a limited lifetime warranty from Tuff Country, with decades of suspension expertise behind every kit.
This lift kit delivers a practical upgrade path for Tundra owners who want enhanced off-road capability, greater tire clearance, and a stronger chassis without a complicated multi-piece replacement. The combination of a one-piece sub-frame, knuckles, and SX8000 shocks provides confident handling on rough trails, while the option to retain factory front struts helps maintain a balanced, comfortable ride for everyday driving. Ideal for those planning to run 33" tires and seek a durable, value-driven solution with reliable brand support.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2005-2006 | Toyota | Tundra | 2WD | |
| 2005-2006 | 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.