4.5-6" 1988-1992 GMC Pickup 1500 4WD Lift Kit (w/rear leaf springs) by Skyjacker

The Skyjacker C4626KS 4.5-6-Inch Suspension Lift Kit for 1988-1992 GMC K1500 Pickup 4WD models is a complete suspension system that provides substantial ground clearance, increased tire clearance, and corrected suspension geometry at the increased ride height. The system combines heavy-duty front suspension relocation components with Skyjacker Softride rear leaf springs, steering correction hardware, differential relocation components, brake line hardware, a differential skid plate, and supporting suspension components. Shock options include Skyjacker Hydro 7000, Nitro 8000, BlackMAX, or M95 shocks.

The front suspension uses heavy-duty A-arm drop brackets and differential relocation components to reposition the factory independent front suspension for a 4.5-6-inch lift. Lowering the control arm mounting points helps maintain better suspension geometry, while the differential drop system reduces excessive CV axle angles caused by the added ride height. A replacement center steering link and idler arm spacer help correct steering geometry, while extended front brake lines provide the additional length needed for the taller suspension configuration. A differential skid plate protects critical front drivetrain components.

At the rear, Skyjacker Softride leaf springs replace the factory spring packs and provide approximately 5 to 5.5 inches of rear lift. This full-replacement spring configuration provides the rear suspension height needed to complement the lifted front end without relying on large rear lift blocks as the primary source of lift. Softride leaf spring construction provides controlled road manners while maintaining useful suspension movement and articulation for trail use. Included U-bolt hardware securely mounts the replacement rear springs to the axle.

The C4626KS is available with Skyjacker Hydro 7000, Nitro 8000, BlackMAX, or M95 shocks. Hydro 7000 shocks provide hydraulic damping for smooth, predictable street and trail performance, while Nitro 8000 shocks use gas-charged damping for a firmer, more responsive suspension feel. BlackMAX shocks feature foam-cell hydraulic technology with vehicle-specific valving for consistent suspension control, while M95 Performance shocks use a 200 PSI gas-charged monotube IFP design with a large 46mm bore for improved damping consistency and heat management. These four shock configurations let you match the suspension to different ride preferences and performance demands.

Features & Benefits

• Provides approximately 4.5 to 6 inches of suspension lift for increased ground clearance and tire clearance
• Designed for 1988-1992 GMC K1500 Pickup 4WD models
• Heavy-duty A-arm drop brackets help maintain proper independent front suspension geometry
• Differential relocation components help maintain more favorable CV axle operating angles
• Front suspension relocation design accommodates the substantial increase in ride height
• Replacement center steering link helps correct steering geometry at the increased suspension height
• Idler arm spacer supports proper steering system positioning
• Extended front brake lines accommodate increased suspension height and travel
• Differential skid plate provides additional protection for front drivetrain components
• Skyjacker Softride rear leaf springs provide approximately 5 to 5.5 inches of rear lift
• Replacement rear leaf springs provide a complete spring-based rear suspension upgrade
• Softride leaf spring construction supports controlled ride quality and suspension articulation
• Full replacement rear spring configuration eliminates reliance on large rear lift blocks for primary rear lift
• Includes rear U-bolt hardware for the replacement leaf spring configuration
• Available with Skyjacker Hydro 7000 hydraulic shocks
• Hydro 7000 shocks provide smooth and controlled hydraulic damping
• Available with Skyjacker Nitro 8000 gas-charged shocks
• Nitro 8000 shocks provide responsive damping for increased suspension control
• Available with Skyjacker BlackMAX foam-cell hydraulic shocks
• BlackMAX shocks feature vehicle-specific valving for controlled ride performance
• Available with Skyjacker M95 Performance monotube shocks
• M95 shocks use a 200 PSI gas-charged monotube IFP design with a large 46mm bore
• Multiple shock configurations allow the suspension system to be matched to different ride and performance preferences