Product Details

Description

Upgrade your classic GM 3/4-ton 4WD with the Tuff Country 13722KN 3" Lift Kit. Engineered for durability and value, it adds authoritative lift, rugged front springs, rear blocks, and SX8000 shocks to elevate both on-road presence and off-road capability for 1973–1987 Chevy Suburban K2500 4WD, Chevy Truck K2500 4WD, GMC Suburban K2500 4WD, and GMC Truck K2500 4WD.

  • Lift Height: 3-inch suspension lift designed to accommodate larger tires and improve ground clearance without compromising reliability.
  • Heavy-Duty Front Springs: Reinforced leaf springs tuned for big-block engines and heavy workloads (e.g., plows), maintaining performance under load.
  • Rear Blocks & Hardware: Sturdy rear blocks with proper hardware to preserve ride height and suspension geometry.
  • SX8000 Shocks Included: High-capacity shocks deliver controlled damping for a balanced ride on and off the pavement.
  • Teflon Pads: Noise-reducing pads help eliminate squeaks and improve overall ride quietness.
  • Tire Compatibility: Enables use of 33" x 12.5" tires, enhancing traction and ground clearance for rugged terrain.
  • Warranty: Limited lifetime warranty on leaf springs for long-term peace of mind.
  • Installation Time: Approximately 4–6 hours under typical conditions, suitable for experienced DIYers or professional install.
  • Fitment Notes: Will Not Fit Diesel Engine Models; designed for 1973–1987 GM 3/4-ton 4WD pickups and Suburbans as listed above.

With this kit, you gain a more capable stance and improved off-road performance while preserving load-carrying ability. The combination of heavy-duty front springs, rear blocks, and SX8000 shocks delivers durable, predictable handling whether you’re climbing trails, plowing snow, or towing. Teflon pads reduce noise for a quieter ride, and the trusted Tuff Country build plus a lifetime leaf-spring warranty provide ongoing confidence for years of use.


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:


Single or Multi-Box Packaging: multi-box (2)
Weight: 124.0 lb
Length: 49
Width: 15
Height: 6


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.

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