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

Built for Chevy and GMC truck owners who want a commanding stance, better off-road clearance, and the ability to fit bigger tires — all without losing the smooth ride their classic deserves. This 6" suspension lift kit combines front lifted leaf springs, rear lift blocks, and add-a-leaf springs to give your C10, K10, or K5 Blazer a leveled, aggressive look. You'll gain enough clearance to run 35"–37" tires and maintain proper driveline geometry with a included raised steering arm.

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

• 6" Front Leaf Springs (qty 2) — Application-specific springs engineered for your truck's weight distribution and ride quality, delivering increased ground clearance without sacrificing comfort.
• Rear 4" Lift Blocks — Stack beneath existing springs to raise the rear suspension and maintain proportional stance front-to-back.
• Add-A-Leaf Spring Kit — Increases rear load support and suspension height for a balanced ride under lifted conditions.
• Raised Steering Arm — Corrects steering geometry after the lift to restore precise handling and proper caster alignment.
• N3 Series Shock Pair (Front & Rear) — Application-valved shocks with 10-stage variable valving, high-pressure nitrogen charge, and 54mm body deliver balanced on-road comfort and off-road control.
• Brake Line Relocation Brackets — Repositions brake lines to prevent damage and maintain proper hydraulic function at lift height.
• U-Bolts & Installation Hardware — Complete fastener kit for secure spring and block attachment.

Important notes

• If your truck is equipped with a front sway bar, drop brackets are recommended (Rough Country SKU 1019) to maintain suspension geometry and prevent binding.
• Vehicles equipped with factory quad shocks (two front shocks per side) will use a single aftermarket shock per side — the kit accounts for this difference.
• Proper wheel backspacing is critical when running tires in the 35"–37" range to avoid rubbing. Road Runner will verify fitment during consultation.

Why customers pick this at Road Runner

• Corrected steering geometry — the included raised steering arm restores factory handling feel after the lift, no aftermarket wander or drift.
• Rough Country lifetime warranty backed by a local dealer who stands behind every install and takes warranty claims seriously.
• Professional installation by technicians who perform these lifts on classic trucks every week — you're not their first rodeo.
• Alignment performed in-house as part of every lift install, so your truck drives straight the day you leave our lot.

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