6 Inch Lift Kit | Chevy Silverado & Gmc Sierra 1500 4wd (1999-2006 & Classic)

Built for Chevy Silverado and GMC Sierra 1500 4WD owners who want aggressive ground clearance without sacrificing ride quality, this Rough Country 6-inch lift kit delivers 35"–37" tire clearance while maintaining factory alignment geometry and comfort. The system uses non-torsion-bar drop brackets to keep your factory torsion bars protected and positioned correctly — eliminating the typical nose-down stance while preserving OEM ride and handling feel.

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" NTD Bracket Box — Non-torsion-bar drop brackets that preserve factory torsion bar positioning and OEM axle geometry while delivering 6 inches of lift.
• Kit Box (main suspension components) — Bolts, fasteners, and hardware needed for a complete bolt-on installation.
• NTD Crossmember Kit Box — Precision-engineered differential brackets and reinforcement components for structural integrity under load.
• 6in NTD RR Kit Box — Fabricated steel lift blocks engineered to replace factory cast blocks with superior strength and an anti-axle wrap design that reduces rear suspension wrap during acceleration.
• Driver and Passenger Knuckles — Heavy-duty steel knuckles that maintain correct axle geometry and minimize premature wear on drivetrain components.

Important notes

• Frame bracket and differential modification required — not a pure bolt-on at those attachment points.
• Models equipped with factory-painted bumpers will require trimming to the valance and bumper for clearance.
• Does NOT fit 1999 old body style (OBS) models — fitment is limited to 1999.5–2006 and 2007 Classic models.
• If your truck is equipped with factory 17" wheels and you are purchasing new wheels, replacements must be 17" or larger to maintain proper suspension geometry.
• A torsion bar removal tool (Rough Country part 1067) is recommended for ease of installation.

Why customers pick this at Road Runner

• Factory geometry preservation — torsion bars stay in their correct OEM location, so your truck rides and handles like stock despite the 6-inch lift.
• Backed by Rough Country's Limited Lifetime Replacement Warranty and installed by technicians who perform these lifts every week.
• Professional alignment performed in-house as part of every lift install — corrected caster and pinion angle ensure tire wear and drivability match your new stance.
• 100% bolt-on system with minimal frame and differential work — no drivetrain modifications, no exhaust relocation required for a clean, reliable install.
• Anti-axle wrap rear blocks and fabricated steel construction deliver long-term durability and stable handling under load or hard acceleration.
• Configurable shock options — choose nitrogen-charged N3, V2 Monotube, or M1 Monotube shocks to dial in your ride quality.

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