4 Inch Lift Kit | Rr Blocks | Chevy/gmc C10/k10 Truck & Suv/k5 Blazer (73-76)

Built for classic Chevy and GMC truck owners who want more ground clearance and tire-carrying capacity without losing ride quality, this 4-inch suspension lift kit raises your C10/K10 or K5 Blazer while maintaining the factory-like comfort that keeps your truck drivable every day. You'll clear up to 35-inch tires and gain the stance and off-road readiness that define the classic lifted look.

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

• Lifted Front Leaf Springs (pair) — Application-specific springs deliver the 4-inch lift while preserving ride quality and handling on road and trail.
• Rear Lift Blocks (4 inch) — Maintains rear height and geometry to complement the front lift.
• Raised Steering Arm — Corrects steering geometry after the lift, ensuring tight, responsive handling and proper alignment without binding.
• N3 Series Shock Pair (front and rear) — Premium shocks valved for your exact application, featuring a 10-stage variable system, high-pressure nitrogen charge, and 54mm body for balanced on-road comfort and off-road control.
• Brake Line Relocation Brackets — Maintains proper brake line routing and geometry after lift.
• U-Bolts and Hardware — Complete fastener package for secure installation.
• Installation Kit — All application-specific mounting hardware and brackets.

Important notes

• If your truck is equipped with a front sway bar, drop brackets are recommended (Rough Country SKU 1019, sold separately).
• Vehicles with factory quad shocks (two front shocks per side) will use a single aftermarket shock from this kit per side.
• Proper wheel backspacing is required to safely run 35-inch tires without rubbing; confirm backspacing before tire purchase.

Why customers pick this at Road Runner

• Rough Country Limited Lifetime Warranty backed by local expertise — we stand behind every kit we install.
• Professionally installed by technicians who perform these lifts every week on classic trucks.
• Alignment performed in-house as part of every lift install, ensuring your steering and geometry are dialed in.
• Raised steering arm included — no hidden geometry corrections needed after the lift.
• N3 shocks are application-valved for your specific truck, not a one-size-fits-all compromise.
• One-day installation gets you back on the road with proper stance, handling, and tire clearance.

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