Rough Country · Authorized Dealer
6 Inch Lift Kit | Mono Leaf Rear | M1 Struts/m1 | Chevy Silverado 1500 (25-26)
$2,009.95
Price does not include installation.
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$2,009.95
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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 Chevy Silverado 1500 owners who want commanding height without sacrificing suspension geometry — this 6-inch lift kit combines laser-cut steel knuckles, drop crossmembers, and M1 struts to elevate your truck while keeping suspension angles close to factory specs. Run 35"–37" tires and maintain the ride quality that comes from precision engineering.
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 (Mono Leaf Rear) — the foundation of your rear suspension upgrade, engineered to work with Chevy Silverado 1500 and GMC Sierra 1500 platforms.
- 6-Inch Driver & Passenger Knuckle Boxes — heavy-duty cast knuckles that reduce CV angles and preserve factory-like geometry through the front suspension.
- 6-Inch Crossmember Box — drop crossmember design that maintains ideal suspension geometry for superior handling and longevity.
- Front Full Skid Plate — protects your undercarriage and new components from trail damage.
- M1 Loaded Strut Pair (6-Inch) — nitrogen-charged front struts with upper spacers that deliver lift height without compromising strength or ride quality.
- M1 Monotube Shock Pair — rear shocks tuned to work with mono-leaf blocks for a balanced, predictable suspension feel.
Important notes
- Requires cutting and drilling — not a bolt-on installation.
- Does NOT fit LT Trail Boss, Custom Trail Boss, or ZR2 models — these factory-lifted variants are incompatible.
- Does NOT fit factory wheels — 20-inch or larger aftermarket wheels are required with 4.5-inch backspacing.
- Some aftermarket wheels may require a 0.25-inch wheel spacer. Test fit wheels prior to installation.
Why customers pick this at Road Runner
- Geometry-corrected design — drop crossmember and steel knuckles keep suspension angles factory-close, preserving ride quality and tire wear.
- Rough Country lifetime warranty backed locally — if anything fails, we make it right.
- Professional installation by suspension specialists — our techs install these kits every week and know every fitment detail.
- Alignment performed in-house as part of every lift install — your truck leaves perfectly dialed in.
- One-stop shop — wheels, tires, shocks, and service all under one roof.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | 6in Kit Dr Knuckle Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 21730BOX5 |
| 1 | 6in Kit Ps Knuckle Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 21730BOX6 |
| 1 | 6in Kit Crossmember Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX11 |
| 1 | Universal Kit Box | Mono Leaf Rear | Chevy Silverado 1500 (19-23) GMC Sierra 1500 (19-23) | 21630991 |
| 1 | FR Full Skid | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX3 |
| 1 | M1 Loaded Strut Pair | 6 Inch | Chevy Silverado 1500 2WD/4WD (2019-2026) | 502067 |
| 1 | M1 MONOTUBE SHOCK PAIR | 770739P |
Features
- Enhanced Stance: Lifts and levels your vehicle from front to rear for a commanding presence.
- Optimized Suspension: High-clearance crossmember design maintains ideal suspension geometry for superior handling.
- Extreme Durability: Includes heavy-duty cast knuckles built to withstand rugged terrain.
- Factory Fitment: Retains stock track width for proper wheel alignment and stability.
- Precision Engineering: 100% laser-cut materials using advanced CAD technology for a perfect fit.
- Built to Last: Heavy-duty fabricated blocks offer superior strength and longevity over cast alternatives.
| Years | Make | Model | Drive |
|---|---|---|---|
| 2025-2026 | Chevrolet | Silverado 1500 High Country | 4WD |
| 2025-2026 | Chevrolet | Silverado 1500 LT | 4WD |
| 2025-2026 | Chevrolet | Silverado 1500 LTZ | 4WD |
| 2025-2026 | Chevrolet | Silverado 1500 PPV | 4WD |
| 2025-2026 | Chevrolet | Silverado 1500 RST | 4WD |
| 2025-2026 | Chevrolet | Silverado 1500 WT | 4WD |
- Tire size: 35″ to 37″ tall
- Lift height: 6″
Requires cutting and drilling. Does NOT fit LT Trail Boss or Custom Trail Boss models as they are equipped with a 2-inch factory lift. Does NOT fit ZR2 models as it is equipped with a 2-inch factory lift and Multimatic DSSV dampers. Tire & Wheel Details Does NOT fit factory wheels. 20-inch or larger aftermarket wheels are required. Wheels must feature 4.5in backspacing to fit. Please test fit wheels prior to installation. Some aftermarket wheels may require 0.25" wheel spacer #1065.
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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