6 Inch Lift Kit | NTD | M1 | Chevy/GMC 1500 4WD (99-06 & Classic)

Elevate Your Stance. Maintain Your Ride: Rough Country's 6" NTD Suspension Lift Kit for 1999-2006 Chevy/GMC 1500 pickups delivers aggressive lift performance without compromising comfort or drivability. This high-clearance kit offers unmatched ground clearance for tackling tough terrain and clears 35" tires with ease. Thanks to its factory torsion bar placement, the kit maintains OEM alignment and geometry preserving your truck's factory ride and handling feel while eliminating the nose-down stance. Built for Strength. Engineered for Precision: Designed with innovation in mind, this kit includes heavy-duty steel knuckles, precision-engineered differential brackets, and OEM axle geometry retention to minimize wear on critical components. The upgraded fabricated lift blocks are stronger than cast blocks and feature an anti-axle wrap design, improving rear stability under load or acceleration. Plus, factory travel stops are reused, ensuring consistent suspension performance on and off the road. No Compromises. All Performance: The kit's non-torsion bar drop brackets keep the torsion bars tucked high and protected, while the Autotrac-compatible design ensures seamless fitment for 4WD models with electronic transfer cases. It's a 100% bolt-on system no cutting, no drivetrain changes, no exhaust relocation required for a clean install with long-term reliability. Choose your ride quality with configurable shock options, including our nitrogen-charged N3, V2 Monotube, or M1 Monotube shocks for tailored performance. Installation Made Simple: With simplified installation and redesigned components, this kit cuts down the install time and complexity. Basic cutting and drilling are minimal, and installation can be completed in 8-10 hours with standard tools. Whether in your garage or by a professional, getting your truck lifted has never been easier. Peace of Mind Included: Rough Country backs this lift kit with our Limited Lifetime Replacement Warranty, protecting against defects in materials and workmanship. Trust in our rugged engineering and enjoy the road ahead with confidence.

Features

Factory Torsion Bar Placement: Torsion bars remain in the factory location, preserving OEM alignment and geometry.
Simplified Installation: Redesigned components make the install process quicker and easier with minimal modifications.
Smooth Factory Ride: Maintains your vehicle's original ride quality for everyday comfort on and off the road.
Autotrac Compatible: Fully compatible with models equipped with Autotrac for expanded vehicle coverage.
Unmatched Ground Clearance: Elevates your ride to conquer rough terrain and obstacles with ease.
OEM Axle Geometry Retained: Keeps axles in their factory position and angle to avoid premature wear or drivetrain strain.
No Modifications Needed: Installs without the need for drivetrain or exhaust adjustments.
Factory Travel Stops Reused: Designed to reuse the original compression travel stops for consistent suspension performance.
Upgraded Fabricated Lift Block: Replaces the factory block with a high-strength fabricated upgrade for improved durability.
Stronger Than Cast Blocks: Fabricated steel construction offers greater strength and longevity compared to cast alternatives.
Anti-Axle Wrap Design: Specially engineered rear blocks reduce axle wrap while maintaining a comfortable, factory-like ride.
Configurable Shock Options: Choose from our nitrogen-charged N3, V2 Monotube, or M1 Monotube shocks the power to customize your ride is in your hands!

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 old body style (OBS) models. For a visual, please click here. If equipped with factory 17" wheels and purchasing new wheels, the new wheels must be 17" or larger. For ease of installation, a torsion bar removal tool is recommended 1067.

Instructions

View Instructions

The Kaos Run Down

Fitment Year: 1999 2000 2001 2002 2003 2004 2005 2006

Make: GMC

Model: Sierra 1500 Classic

Submodel: Denali

Drive: AWD