6 Inch Lift Kit | Ntd | M1 | Chevy/gmc 1500 4wd (99-06 & Classic)

Built for Chevy and GMC 1500 4WD owners who want serious ground clearance without sacrificing ride quality, this Rough Country 6" NTD Suspension Lift Kit delivers aggressive lift performance while maintaining your truck's factory handling and comfort. The kit clears 35"–37" tires and preserves OEM alignment and geometry thanks to factory torsion bar placement — no nose-down stance, no premature drivetrain wear.

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 — Front suspension brackets engineered to retain factory torsion bar placement and OEM axle geometry.
• Kit Box — Core suspension components for seamless integration with your 1500 frame.
• NTD Crossmember Kit Box — Precision-engineered crossmember assembly that maintains factory travel stops and suspension geometry.
• 6" NTD Shock Upgrade Kit Box — Components for shock installation and mounting.
• Driver & Passenger Knuckles — Heavy-duty steel knuckles that support axle geometry retention and reduce axle wrap.
• M1 Monotube Shock Pair (pair) — Nitrogen-charged monotube shocks tuned for lifted truck performance and everyday comfort.
• Upgraded Fabricated Lift Blocks — High-strength steel blocks with anti-axle wrap design, engineered for durability and rear stability under load.

Important notes

• Frame bracket and differential modification required.
• Models equipped with factory-painted bumpers will require trimming to the valance and bumper.
• Does NOT fit 1999 OBS (old body style) models.
• If equipped with factory 17" wheels and purchasing new wheels, replacement wheels must be 17" or larger.
• A torsion bar removal tool (RC part 1067) is recommended for easier installation.
• 100% bolt-on design — no cutting of drivetrain or exhaust relocation required.
• Autotrac-compatible for models with electronic transfer cases.

Why customers pick this at Road Runner

• Factory torsion bar placement preserves OEM alignment geometry — your truck rides and handles like factory, just higher.
• Rough Country Limited Lifetime Replacement Warranty backed locally — we stand behind every kit we install.
• Professionally installed by technicians who perform these lifts every week — precision work, same-day turnaround.
• Alignment performed in-house as part of every lift install — caster correction dialed in before you drive away.
• Anti-axle wrap design and fabricated steel blocks mean long-term reliability and reduced wear on critical drivetrain components.

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