4" 1973-1986 GMC Suburban 1/2 ton 4WD Lift Kit (w/rear leaf springs) by Skyjacker

Skyjacker C140AKSS 4 Inch Suspension Lift System for 1973-1986 GMC 1/2-Ton Suburban models is designed to provide increased ground clearance, larger tire fitment, and improved off-road capability while maintaining dependable ride quality. Specifically engineered for vehicles equipped with 52-inch or 56-inch rear leaf springs, this complete suspension system utilizes replacement front and rear leaf springs to deliver a true suspension lift while preserving proper suspension travel and load-carrying performance.

The kit includes replacement front and rear leaf springs, front and rear U-bolt kits, and a leaf spring bushing kit to refresh critical suspension components while adding 4 inches of lift. By replacing factory spring packs rather than relying on lift blocks alone, the C140AKSS helps restore suspension performance while providing clearance for up to 35x12.50 tires. The result is improved trail capability, enhanced ground clearance, and a more aggressive stance for classic Suburban builds.

Available shock options allow the suspension system to be tailored to a variety of driving styles and applications. Choose from no shocks for custom builds, Black MAX shocks for dependable daily driving, Hydro 7000 hydraulic shocks for a smooth ride, Nitro 8000 nitrogen-charged shocks for improved control, or M95 monotube shocks for enhanced damping consistency and off-road performance.

Features & Benefits

• Fits 1973-1986 GMC 1/2-Ton Suburban models
• Designed for vehicles equipped with 52-inch or 56-inch rear leaf springs
• Provides 4 inches of suspension lift
• Includes replacement front and rear leaf springs
• Complete front and rear U-bolt kits included
• Includes front poly leaf spring bushing kit, rear springs include pre-installed rubber bushings
• Provides a true suspension lift using replacement leaf springs
• Improves ground clearance and off-road capability
• Allows clearance for up to 35x12.50 tires
• Compatible with 15-20 x 8-10 inch wheels
• Designed for use with OEM wheel backspacing
• Available without shocks or with Black MAX, Hydro 7000, Nitro 8000, or M95 Monotube shocks
• OEM front sway bar applications require SBL20 sway bar lowering brackets
• Recommended for use with extended brake lines
• Moderate installation with no cutting or welding required
• Approximate installation time: 6 hours
• Additional fitted leafs required for Big Block and diesel-equipped models