Tuff Country 13721KN 3" Lift Kit with EZ-Ride Front Springs and 52" Rear Springs with SX8000 Shocks
Tuff Country
13721KN
Pairs well with
Expert Post-Purchase Assistance
Limited Lifetime Warranty
Made in the USA
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Tuff Country 13721KN 3" Lift Kit with EZ-Ride Front Springs and 52" Rear Springs with SX8000 Shocks
Product Details
Description
Elevate your late-model heavy-duty ride with the Tuff Country 13721KN 3" Lift Kit EZ-Ride with SX8000 Shocks. Designed for 3/4-ton Chevy/GMC trucks and square-body SUVs, this all-in-one kit adds generous ground clearance while preserving a confident, controlled ride.
- Lift Height: 3-inch suspension lift designed to increase clearance for larger tires without compromising steering geometry.
- EZ-Ride Front Springs: Advanced leaf springs with integrated Teflon pads to reduce noise and provide a smoother, quieter ride.
- Rear Springs: 52" long rear springs engineered for improved load handling and stability on/off road.
- Shocks Included: SX8000 shocks included to deliver balanced damping for daily driving and tougher terrain.
- Tire Compatibility: Supports up to 33" x 12.5" tires for enhanced traction and stance.
- Vehicle Fitment: Compatible with 1973–1987 Chevy Suburban K2500 4WD, Chevy Truck K2500 4WD, GMC Suburban K2500 4WD, and GMC Truck K2500 4WD (non-diesel engines).
- Installation Note: Factory front and rear shocks must be replaced with extended shocks for proper installation; options available to select extended shocks.
- Warranty: Limited lifetime warranty on the leaf springs for lasting confidence in your upgrade.
- Install Time: Average 4–6 hours, making a solid weekend project for a reliable gain in ride height.
This lift kit isn’t just about looks—it’s about real-world capability. The EZ-Ride leaf springs reduce road noise and deliver a steadier ride when carrying gear or towing, while the 52" rear springs maintain axle alignment and improved load support. The SX8000 shocks complete the package with dependable damping, helping your vehicle resist body roll on winding roads and stay composed on rough trails. With a proven 35+ year track record from Tuff Country and a limited lifetime warranty on the springs, this kit is built for long-term confidence and value in the Vehicle Parts & Accessories category.
| Important Installation Note | Factory front & rear shocks must be replaced with new extended shocks to install this lift kit properly. Please choose shocks & boots in the "Options" fields above if you have not already purchased extended shocks. |
|---|---|
| Warranty | Limited lifetime Warranty on leaf springs |
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 1973-1987 | Chevy | Suburban K2500 | 4WD | Will Not Fit Diesel Engine Models. Fits 3/4 Ton Models. |
| 1973-1987 | Chevy | Truck K2500 | 4WD | Will Not Fit Diesel Engine Models. Fits 3/4 Ton Models. |
| 1973-1987 | GMC | Suburban K2500 | 4WD | Will Not Fit Diesel Engine Models. Fits 3/4 Ton Models. |
| 1973-1987 | GMC | Truck K2500 | 4WD | Will Not Fit Diesel Engine Models. Fits 3/4 Ton Models. |
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.