2 Inch Lift | 56 Inch Rear Springs | Chevy/GMC 3/4-Ton Suburban/C25/K25 Truck (77-87)

Rough Country’s 2 Inch GM Suspension Lift System is the upgrade your 1977–1987 Chevy/GMC 3/4-Ton Suburban, C25, or K25 truck deserves. This front-to-back kit levels your ride, giving you a bolder, more aggressive stance while preserving a comfortable, factory-like attitude on the highway. With true leveling you’ll enjoy a more balanced look and use-ready clearance for larger tires without compromising control or ride quality.

What’s included and how it works

• Front lifted leaf springs provide added ride height upfront without sacrificing smoothness or performance.
• Rear leaf springs and brake line brackets keep geometry correct and lines safe as you lift, preserving handling and braking performance.
• Rough Country N3 shocks deliver a precise blend of off-road capability and on-highway comfort with 10-stage variable high-pressure nitrogen charging, an 18mm spring-loaded piston rod, and a robust 54mm shock body for faster cooling and consistent damping.
• Fits up to 33" tires with proper wheel backspacing, so you can build the look you want without guessing about fitment.
• Backed by Rough Country’s Lifetime Replacement Warranty for long-term peace of mind.

Why this kit stands out

This GM-specific lift is engineered to preserve ride quality while delivering a noticeable, confident stance. Unlike generic lifts, the 2" GM Suspension Lift System maintains precise suspension geometry from front to rear, ensuring predictable steering, improved approach/departure angles, and reliable handling whether you’re cruising on highways or carving dirt roads.

Key benefits you’ll feel

• Level stance with equalized front and rear ride height for a balanced, aggressive look.
• Improved ground clearance without a harsh highway ride, thanks to the tuned N3 shocks and leaf-spring design.
• Versatile tire fitment up to 33" tires, expanding options for traction and style while preserving steering response.
• Reliable braking geometry maintained by included brake line brackets, so front-end extension doesn’t degrade stopping feel.
• Long-term confidence with a lifetime replacement warranty that stands behind the kit as you drive daily or chase off-road adventures.

Ideal use cases

• RESTYLE AND FUNCTION: Transform the look of your 3/4-ton Suburban or K25 while keeping daily-driver comfort.
• OFF-ROAD ADVENTURES: Lifted stance improves approach angles and offers extra wheel travel capacity for rugged trails.
• TOWING AND HAULING: Stable ride height helps maintain predictable handling when carrying heavy loads.
• FITMENT CONFIDENCE: Designed for 1977–1987 GM heavy-duty trucks, ensuring compatibility with the right leaf spring geometry and brake lines.

How it compares to alternatives

Opting for a leaf-spring-based lift designed specifically for GM trucks means you’re not compromising ride quality with stiffer, generic suspension components. This kit preserves a comfortable highway feel while delivering meaningful elevation. The integrated brake-line brackets keep line angles correct, reducing the risk of rub or brake-line fatigue. The 10-stage N3 shocks provide controlled damping that’s tuned to handle both highway cruising and off-road abuse, a balance that’s often missed by cheaper, non-gm-compatible options.

Installation and care

The kit is described as easy-to-install, with components chosen to align with the factory hardware where possible. After installation, an alignment is recommended to restore optimal steering geometry, and occasional torque checks help maintain longevity of the leaf springs and shocks. The result is a lifted truck that feels integrated, not aftermarket, with predictable handling across a range of driving situations.

Specifications and compatibility

• Vehicle applicability: 1977–1987 Chevy/GMC 3/4-Ton Suburban, C25, K25
• Lift height: approximately 2 inches
• Tire capacity: up to 33" tires with proper wheel backspacing
• Suspension components: front lifted leaf springs, rear leaf springs, brake line brackets
• Shocks: Rough Country N3, 10-stage variable nitrogen-charged, 18mm piston rod, 54mm shock body
• Warranty: Lifetime Replacement Warranty

Ready to elevate your GM heavy-duty rig with a proven, purpose-built system? This 2" GM Suspension Lift System from Rough Country gives you a leveled profile, robust off-road capability, and a confident, comfortable ride—backed by a warranty that means business.