Enhance your vehicle's performance and appearance with the GMC K15 Suburban Suspension Lift Kit - Rear - Rough Country - 4 Inch, N3 Series Shocks for the '77-'78 models. This comprehensive lifting solution delivers a bold, aggressive stance while boosting off-road capabilities, all through an easy bolt-on installation process.

Engineered for superior ride quality, this kit is designed to elevate your truck's height without compromising comfort or control. It includes application-specific front lifted leaf springs that offer additional ground clearance. The rear lift blocks and brake line brackets help maintain proper geometry for a smooth, factory-like ride even after the lift. For those seeking a full suspension overhaul, an optional upgrade with replacement rear lifted leaf springs is also available, eliminating the requirement for lift blocks and ensuring consistent rear elevation.

Rough Country's N3 Series Shocks, renowned for their balance between on-road smoothness and off-road prowess, are included as standard. These shocks feature a 10-stage variable valving system, a high-pressure nitrogen charge, and a durable 54mm shock body with an 18mm piston rod. These features ensure both performance and longevity, making them an ideal choice for spirited adventures on unpredictable terrains.

Features

• Boosted Ground Clearance for improved off-road capability
• Application-Specific Front Lifted Leaf Springs for superior ride quality
• Optional Replacement Rear Lifted Leaf Springs for complete suspension upgrade
• Ample Space for up to 35-Inch Tires
• Raised Steering Arm for enhanced control and alignment
• Premium N3 Series Shocks for a well-balanced driving experience
• Limited Lifetime Warranty from Rough Country

For vehicles equipped with 56-inch rear leaf springs, this kit is a perfect fit. Please note that if your vehicle has a front sway-bar, drop brackets are recommended (SKU: 1019). To confirm rear spring size, a measurement from eyelet to eyelet is necessary. For those with factory quad shocks, simply use a single aftermarket shock per side.

We invite you to transform your GMC K15 Suburban with this exceptional suspension lift kit. If you have any questions, feel free to reach us directly at 512-982-9393 for our Austin, Texas location, or 562-981-6800 for our Los Angeles, California area. We also offer installation and customization services at both locations. Our team is ready to assist every step of the way in achieving the truck performance you've always wanted.

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