Tuff Country 55906 5" Lift Kit with Knuckles 1 Piece Sub-Frame Rear Blocks and U-Bolts No Shocks
Tuff Country
55906
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Tuff Country 55906 5" Lift Kit with Knuckles 1 Piece Sub-Frame Rear Blocks and U-Bolts No Shocks
Product Details
Description
Upgrade your 2004 Toyota Tundra 4WD with the Tuff Country 55906 5-inch lift kit. Built for off-road enthusiasts, this complete suspension upgrade delivers reliable height, room for larger tires, and a proven, durable design backed by a lifetime warranty.
- Lift Height: 5" front / 4" rear, engineered to fit up to 33" tires (33" x 12.5").
- One-Piece Sub-Frame: Enhanced front-end strength and rigidity for improved handling under load.
- Knuckles & Upper Joints: Heavy-duty replacement knuckles with upper ball joints and bearings pressed into new spindles for dependable steering geometry.
- Rear Blocks & U-Bolts: Included components to complete the lift and maintain proper spring alignment.
- Front Struts Compatibility: Front stock struts can be retained, helping preserve ride quality and ease of installation.
- Shocks Not Included: This kit ships without shocks; factory-length shocks must be replaced with extended rear shocks for proper installation (extended shocks recommended for the rear).
- ABS & Hubs Compatibility: Designed to fit ABS brakes and automatic hubs; vehicles without ABS require optional ABS plugs.
- Rim Backspacing: Factory rims will not fit; choose rims with 4.5" backspacing or less.
- Warranty: Covered by Tuff Country’s limited lifetime warranty for lasting peace of mind.
With this 5-inch lift, you gain substantial ground clearance and the ability to run larger tires, while the one-piece sub-frame and reinforced knuckles deliver dependable durability on rough terrain. The design preserves a near-factory ride by using upper coil/strut spacers, and it keeps steering predictable with components assembled for precise alignment. This kit is ideal for Toyota Tundra owners who want a robust, straightforward upgrade that expands off-road capability without sacrificing everyday drivability. For best results, pair the kit with extended rear shocks and the appropriate rims to complete your look and performance on and off the trail.
| 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.