6 Inch Lift Kit | N3 Struts | Gmc Sierra 1500 2wd/4wd (2025-2026)

Built for GMC Sierra 1500 owners who want a commanding stance with room for 35–37-inch tires — this 6-inch lift kit raises your truck from front to rear while preserving suspension geometry and ride quality. Heavy-duty steel knuckles, drop cross members, and rear blocks keep angles factory-like, so handling stays predictable even after the lift.

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

• Universal Kit Box — core suspension frame and mounting hardware for 2025 Sierra 1500.
• 6-inch Driver & Passenger Knuckle Boxes — heavy-duty cast knuckles that reduce CV angles and maintain factory-like suspension geometry.
• 6-inch Crossmember Box — drop-style component that lowers the differential mounting point to preserve ride quality and handling.
• Front Skid Plate — reinforced steel protection for undercarriage terrain clearance.
• N3 Shock Pair — nitrogen-charged shocks engineered to work with the lift geometry.
• Loaded Strut Pair — pre-assembled front struts with upper spacers for the full 6-inch lift height.

Important notes

• Does NOT fit Denali or Denali Ultimate models — they are equipped with Adaptive Ride Control and are incompatible with this kit.
• Does NOT fit AT4 or AT4X models — they come factory-equipped with a 2-inch lift and either factory dampers or Multimatic DSSV dampers.
• Requires cutting and drilling — professional installation strongly recommended.
• Does NOT fit factory wheels. 20-inch or larger aftermarket wheels are required, and must feature 4.5-inch backspacing. Some wheels may require a 0.25-inch spacer.
• Test-fit wheels before finalizing your setup to confirm fitment.

Why customers pick this at Road Runner

• Factory-geometry suspension design keeps your Sierra handling like stock, even lifted 6 inches.
• Rough Country limited lifetime warranty backed by local service and support.
• Professional installation by technicians who perform these kits every week — alignment performed in-house as part of every lift install.
• Configurable shock options — choose N3 nitrogen-charged or Vertex reservoir shocks to match your terrain and budget.

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