6" 1988-1991 GMC Suburban 3/4 ton 4WD Lift Kit by Skyjacker

The Skyjacker C160BK8 6-Inch Suspension Lift Kit for 1988-1991 GMC Suburban 3/4-Ton 4WD models is engineered to provide increased ground clearance, enhanced off-road capability, and the rugged stance expected from a full-size SUV. Designed around heavy-duty replacement front leaf springs and rear lift blocks, this complete suspension system delivers a true 6-inch lift while providing clearance for up to 37x12.50 tires. Multiple Skyjacker shock options allow you to customize ride quality and performance to match everything from daily driving to serious trail use.

The system includes replacement front leaf springs, rear lift blocks, front and rear U-bolt kits, a leaf spring bushing kit, and brake line brackets to support the increased suspension height. This combination restores suspension performance while maintaining proper driveline geometry and dependable load-carrying capability. Designed as a bolt-on system, the C160BK8 installs without cutting or welding, making it an excellent suspension upgrade for classic GMC 3/4-ton Suburban models.

Select the shock package that best fits your driving needs with Skyjacker Black MAX shocks for dependable everyday performance, Hydro 7000 hydraulic shocks for a smooth factory-like ride, Nitro 8000 nitrogen-charged shocks for improved control and handling, or M95 monotube shocks for superior damping consistency and fade resistance. Built with Skyjacker's proven suspension engineering, the C160BK8 delivers the strength, durability, and performance needed for work, towing, and off-road adventures.

Features & Benefits

• Fits 1988-1991 GMC Suburban 3/4-Ton 4WD models
• Provides 6 inches of suspension lift
• Allows clearance for up to 37x12.50 tires
• Includes heavy-duty replacement front leaf springs
• Includes rear lift blocks
• Includes front and rear U-bolt kits
• Includes leaf spring bushing kit
• Includes brake line brackets to accommodate increased suspension travel
• Available with Skyjacker Black MAX shocks
• Available with Skyjacker Hydro 7000 shocks
• Available with Skyjacker Nitro 8000 shocks
• Available with Skyjacker M95 monotube shocks
• Recommended for 15-20x8-10 wheels with 3.5-4 inches of backspacing
• Intermediate bolt-on installation with no cutting or welding required