Introducing the GMC K15 Suburban Suspension Lift Kit - Front + Rear - Rough Country - 4 Inch Lift Kit for '77-'78 models. This lift kit is designed to elevate your truck's performance, delivering the enhanced ride height and off-road readiness you need without compromising the comfort of an on-road drive.

The Rough Country 4" Suspension Lift Kit boasts an impressive array of features designed for superior performance. This comprehensive kit includes application-specific front lifted leaf springs, engineered for a precise fit and optimal ride quality. These springs deliver increased ground clearance, allowing for larger tires and improved off-road capability while maintaining the truck's factory-like ride comfort and control. The rear lift blocks and brake line brackets ensure proper geometry is preserved, assuring a smooth and consistent ride quality after installation.

With the included Rough Country N3 Series Shocks, you get a perfect balance between on-road smoothness and off-road ruggedness. These shocks feature a 10-stage variable valving system, high-pressure nitrogen charge, and durable 54mm shock bodies with 18mm piston rods, all calibrated for your vehicle, guaranteeing durability and peak performance in any condition.

Features

• Application-Specific Front Leaf Springs: Engineered for a perfect fit and optimal ride quality.
• Optional Rear Leaf Springs: Available for a complete suspension upgrade.
• Clears 35-Inch Tires: Provides room for up to a 35" tall tire.
• Raised Steering Arm: Corrects steering geometry for precise handling.
• Premium N3 Series Shocks: Includes application-valved shocks for balanced comfort and control.

This 4" lift kit provides the extra height needed for conquering off-road obstacles with ease. It's easy to install, with a bolt-on process, and Rough Country stands behind their quality with a Limited Lifetime Warranty, offering long-term confidence in your upgraded suspension.

For any questions about the GMC K15 Suburban Suspension Lift Kit or installation services, feel free to contact us directly. We are available at our two locations in Austin, Texas and Los Angeles, California, where we also offer customization services to meet all your needs. 512-982-9393 (TX), 562-981-6800 (CA)

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov