



Tuff Country 36004KN 6" Standard Lift Kit with Coil Springs and Rear Blocks That Fit Both 3.5Ó & 4Ó Rear Axle Tube with SX8000 Shocks
Tuff Country
36004KN
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Limited Lifetime Warranty
Made in the USA
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Tuff Country 36004KN 6" Standard Lift Kit with Coil Springs and Rear Blocks That Fit Both 3.5Ó & 4Ó Rear Axle Tube with SX8000 Shocks
Product Details
Description
Elevate your Dodge Ram 2500/3500 4WD with the Tuff Country 36004KN 6" Lift Kit — a rugged, bolt-on solution built for real-world off-road performance and confident on-road manners.
- Lift Height: 6" front lift with a 4" rear drop to improve ground clearance and approach/departure angles
- Shocks Included: SX8000 nitro gas shocks for smooth, controlled damping across rough terrain
- Coil Springs: New replacement coil springs engineered to maintain ride height and stability
- Control Arms: Upper and lower control arms included to preserve proper alignment after lifting
- Track Bar Bracket: New track bar bracket helps maintain steering accuracy under load
- Installation: Bolt-on installation with all necessary hardware for a straightforward setup
- Tire Compatibility: Supports up to 37" x 12.5" tires for a bold, capable stance
- Finish & Durability: Powder-coated components resist corrosion in demanding environments
- Vehicle Fitment: Designed for 2003–2007 Dodge Ram 2500/3500 4WD
- Warranty: Backed by Tuff Country’s Limited Lifetime Warranty
- Installation Note: Vehicles with 2-piece rear driveshafts may require a carrier bearing drop
This lift kit combines proven Tuff Country engineering with purpose-built components to deliver reliable height, improved off-road capability, and predictable handling. The included SX8000 shocks, replacement coil springs, and reinforced control arms support gains in ground clearance while maintaining alignment and ride quality. The powder-coated finish and durable hardware are built to withstand trail grime and harsh conditions, making this kit a practical, long-term upgrade for your Ram. Perfect for enthusiasts who want serious off-road performance without compromising daily drivability, and backed by a trusted brand with a history of quality suspension solutions.
| Recommended Tire Size | 37" x 12.5" |
|---|---|
| Amount of Lift | 6" Front / 4" Rear |
| Drop Pitman Arm | Included |
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2003-2007 | Dodge | Ram 2500 | 4WD | Will not fit Off-Roadster Models (they come equipped with a factory lift). Ends June 2007 |
| 2003-2007 | Dodge | Ram 3500 | 4WD | Will not fit Off-Roadster Models (they come equipped with a factory lift). Ends June 2007 |
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.

