Tuff Country 13712K 3" Lift Kit with Heavy Duty Front Springs with Rear Blocks No Shocks

Lift and level your classic GM 4WD with confidence using the Tuff Country 13712K 3-inch lift kit. Built for 1973–1987 Chevy Blazer/Suburban/Truck and GMC counterparts, this kit focuses on rugged durability and straightforward installation to support bigger tires and tougher terrain.

• Lift height: 3 inches of front lift and 3 inches of rear lift for a balanced, noticeable stance without compromising handling.
• Front springs: Heavy-duty front leaf springs designed to handle added loads from big-block engines and snow plows.
• Rear blocks: Includes 3-inch cast iron rear blocks to maintain proper axle position and load support.
• U-bolts & hardware: Comprehensive mounting hardware set (front and rear U-bolts) for a secure installation.
• Shocks included: Shocks are not included with this kit; designed to pair with your existing or selected shocks.
• Teflon pads: Noise-reducing teflon inserts between leafs to minimize squeaks and improve ride quality.
• Tire compatibility: Supports up to 33" x 12.5" tires for improved ground clearance and aggressive styling.
• Warranty: Limited lifetime warranty on leaf springs, underscoring long-term durability.
• Installation time: Typical install window is about 4–6 hours, making it a feasible weekend upgrade.
• Made in the USA: Proudly manufactured in the United States, reflecting a focus on quality control and support.

This kit is designed to transform how your GM 4WD rides and handles. The combination of heavy-duty front springs and rear blocks provides robust load-carrying capacity while maintaining a practical, street-friendly ride. With the 33" x 12.5" tire option, you gain improved off-road traction and a more commanding presence without compromising daily drivability. The included teflon pads reduce noise for a quieter cabin experience, and the lifetime warranty on the leaf springs adds ongoing peace of mind. For weekend warriors and nostalgia enthusiasts alike, this kit delivers a durable, straightforward path to a tougher, more capable classic rig.

Fits 1973–1987 Chevrolet Blazer 4WD, Suburban 1/2 Ton 4WD, and Truck 4WD models, along with 1973–1987 GMC Jimmy/Suburban/Truck 4WD. Will not fit diesel-engine models. Average install time is 4–6 hours, and the kit is sold as a complete package with heavy-duty front springs, rear blocks, and all necessary U-bolts and hardware to complete the upgrade.