6 Inch Lift Kit | Chevy/gmc C10/k10 Truck & Suv/k5 Blazer 4wd (1977-1991)

Built for classic Chevy and GMC truck owners who want a factory-smooth 6-inch lift with room for 37-inch tires, this Rough Country lift kit combines front and rear suspension geometry correction with premium N3 shocks for balanced on-road comfort and off-road control. Gain the extra height and aggressive stance you're after without sacrificing ride quality or drivability.

Installed and serviced at Road Runner Wheels & Tires. Most lift kits go in the same day. Call (678) 400-6467 to schedule.

What's included

• 2-Ton 6-inch Box Kit N3 — Provides the foundational lift structure and mounting points for your suspension system.
• 6-inch Front Leaf Springs (qty. 2) — Application-specific springs engineered for your truck's weight and geometry, delivering increased ground clearance while maintaining ride comfort.
• Add-A-Leaf Spring Kit — Rear suspension upgrade that works with lift blocks to maintain proper rear geometry and ride quality.
• Premium N3 Series Shocks — Application-valved shock absorbers with 10-stage variable valving, high-pressure nitrogen charge, and 54mm shock body for balanced comfort and control both on-road and off-road.
• Raised Steering Arm — Corrects steering geometry after the lift, preserving tight, responsive handling and proper alignment.
• Brake Line Brackets — Maintain proper brake system geometry throughout the suspension travel.

Important notes

• If your truck is equipped with a front sway bar, drop brackets (SKU 1019) are recommended to preserve suspension geometry and handling.
• Optional rear springs are available; rear spring size must be confirmed by measuring eyelet-to-eyelet. Contact Road Runner for guidance.
• Vehicles with factory quad shocks (two front shocks per side) will use a single aftermarket shock per side in this kit.
• Proper wheel backspacing is critical when running tires up to 37 inches to avoid rubbing — our team will confirm fitment during consultation.

Why customers pick this at Road Runner

• Rough Country Limited Lifetime Warranty backed locally — we stand behind every kit we install.
• Geometry correction included — raised steering arm and brake line drops restore proper drivability right out of the box.
• Professional alignment performed in-house as part of every lift install.
• Experienced technicians who install these kits every week on classic Chevy and GMC trucks.
• One-day turnaround on most installations — get your truck lifted and back on the road fast.

Ready to build it? Call (678) 400-6467. Hablamos Español.