Rough Country · Authorized Dealer
6 Inch Lift Kit | M1 | Chevy/gmc Sierra/silverado 2500 4wd (1999-2004)
$1,439.95
Price does not include installation.
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$1,439.95
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🛠️ Install available in Marietta, GA
Installed and serviced at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Call (678) 400-6467 to schedule.
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Built for heavy-duty Chevy and GMC 4WD owners who want 6 inches of ground clearance without sacrificing on-road comfort. This complete lift kit delivers the aggressive stance and off-road capability you need while maintaining a smooth factory ride. The kit supports up to 35-inch tires, giving your truck the traction and presence for serious terrain.
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-inch Driver Knuckle — One-piece CNC-machined knuckle delivers precision and durability at the front driver side.
- 6-inch Pass Knuckle — Matching passenger-side knuckle maintains balanced geometry and off-road performance.
- Torsion Drop Kit Box — Unloads factory torsion bars to integrate with the new suspension geometry.
- Crossmember Kit Box — Heavy-duty laser-cut crossmembers reinforce the frame for added strength on rough terrain.
- Kit Box — Structural components engineered to work with the knuckles and crossmembers.
- M1 Monotube Shocks (pair) — Nitrogen-charged monotube dampers provide responsive, controlled suspension tuning.
Important notes
- Applicable on 2007 "Classic" models with minor front differential modification required.
- Vehicles with 2-piece driveshafts require a separate carrier-bearing drop kit.
- Torsion bar unloading tool (SKU 1067) is required for proper installation.
- Designed to run 35–37 inch tires; verify backspacing and offset with our technicians to ensure proper clearance.
Why customers pick this at Road Runner
- Built-in skid plate protects critical components without sacrificing ground clearance.
- CNC-machined knuckles and laser-cut crossmembers deliver precision engineering you can feel on every trail.
- Rough Country lifetime warranty backed locally — we stand behind every kit we install.
- Professional technicians who specialize in heavy-duty lift installs align your truck in-house as part of the service.
- Configurable shock options (N3, V2, or M1 Monotube) let you dial in the exact ride quality you want.
- One-day installation gets you back on the road ready to explore.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | Kit Box | Chevy Silverado 2500 (99-04) Chevy Silverado 2500 HD (01-10) | 297BOX1 |
| 1 | Crossmember Kit Box | Chevy Silverado 2500 (99-04) Chevy Silverado 2500 HD (01-10) | 297BOX2 |
| 1 | Torsion Drop Kit Box | Chevy Silverado 2500 (99-04) GMC Sierra 2500 (99-04) | 259BOX3 |
| 1 | 6in Driver Knuckle | Chevy Silverado 2500 (99-04) Chevy Silverado 2500 HD (01-10) | 1297BOX1 |
| 1 | 6in Pass Knuckle | Chevy Silverado 2500 (99-04) Chevy Silverado 2500 HD (01-10) | 1297BOX2 |
| 1 | M1 MONOTUBE SHOCK PAIR | 770761P |
| 1 | M1 MONOTUBE SHOCK PAIR | 770744P |
Features
- Maintains Factory Ride Quality: Ensures a smooth, comfortable ride on and off the road.
- Increased Ground Clearance: Tackle rough terrain with improved off-road performance.
- Designed to Run 35x12.50 Tires: Supports larger tires for an aggressive stance and enhanced traction.
- One-Piece CNC-Machined Knuckles: Precision-crafted for strength and durability.
- Integrated Skid Plate: Protects vital components without sacrificing ground clearance.
- Configurable Shock Options: Choose from our nitrogen-charged N3, V2 Monotube, or M1 Monotube shocksΓÇöthe power to customize your ride is in your hands!
| Years | Make | Model | Drive |
|---|---|---|---|
| 2001-2005 | Chevrolet | Silverado 1500 HD LS | 4WD |
| 2001-2006 | Chevrolet | Silverado 1500 HD LT | 4WD |
| 2005 | Chevrolet | Silverado 1500 HD Base | 4WD |
| 1999-2004 | Chevrolet | Silverado 2500 Base | 4WD |
| 1999-2004 | Chevrolet | Silverado 2500 LS | 4WD |
| 1999-2004 | Chevrolet | Silverado 2500 LT | 4WD |
| 2004 | Chevrolet | Silverado 2500 WT | 4WD |
| 2001-2006 | GMC | Sierra 1500 HD SLE | 4WD |
| 2001-2006 | GMC | Sierra 1500 HD SLT | 4WD |
| 1999-2002 | GMC | Sierra 2500 SL | 4WD |
| 1999-2004 | GMC | Sierra 2500 SLE | 4WD |
| 1999-2004 | GMC | Sierra 2500 SLT | 4WD |
| 2002-2004 | GMC | Sierra 2500 Base | 4WD |
| 2003-2004 | GMC | Sierra 2500 WT | 4WD |
- Tire size: 35″ to 37″ tall
- Lift height: 6″
Applicable on 2007 "Classic" models. Requires minor modification to the front differential. Models with 2-piece driveshafts require a carrier-bearing drop kit. SKU: 1115. Torsion bar unloading tool required for installation. SKU: 1067.
Rough Country Lifetime Replacement Warranty covers all structural components against defects in materials and workmanship for the original purchaser's lifetime ownership of the vehicle.
3-Year Finish Warranty on all painted and powder-coated surfaces.
3-Year Shock Warranty on N3, M1, and Vertex shocks against leakage and structural failure.
Warranty service is handled by Rough Country directly — call (678) 400-6467 if you need help opening a warranty claim and we'll walk you through it.
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