
Rough Country · Authorized Dealer
6 Inch Lift Kit | Mono Leaf Rear | Diesel | Chevy Silverado 1500 4wd (25-26)
$1,399.95
Price does not include installation.
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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.
Built for Chevy Silverado 1500 diesel owners who want commanding height without sacrificing suspension geometry, this 6-inch lift kit raises and levels your truck while maintaining factory-like angles across all suspension components. Rough Country's engineering preserves ride quality through precision-cut steel knuckles, differential brackets, and drop cross members that reduce CV angles — letting you run 35" to 37" tires confidently and keep your truck feeling planted on and off-road.
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 Mono Leaf Rear Kit Box — rear blocks, shocks, and u-bolts engineered to retain factory-like geometry and deliver 6 inches of lift.
- 6-inch Front Suspension Kit Box — upper strut spacers offering uncompromised strength and rigidity to gain lift height without compromise.
- Driver and Passenger Knuckle Boxes — heavy-duty cast knuckles built to withstand rugged terrain while reducing CV angles.
- Diesel-Specific Front Kit Box — differential brackets and engineered components tailored to diesel truck weight and driveline geometry.
- Drop Cross Member Box — precision-machined crossmember that maintains ideal suspension geometry for superior handling and clearance.
Important notes
- Requires cutting and drilling for installation.
- Does NOT fit LT Trail Boss, Custom Trail Boss, or ZR2 models — these come equipped with factory 2-inch lifts and/or Multimatic DSSV dampers incompatible with this kit.
- Does NOT fit factory Chevy wheels — 20-inch or larger aftermarket wheels required.
- Wheels must feature 4.5-inch backspacing for proper fitment. Some aftermarket wheels may require a 0.25-inch wheel spacer (#1065).
- Test fit wheels prior to installation to confirm clearance and backspacing compatibility.
Why customers pick this at Road Runner
- Geometry preserved — Rough Country's drop cross member and knuckle design keep suspension angles close to factory specs, so your truck rides smooth even at 6 inches higher.
- Backed by Rough Country's limited lifetime warranty against manufacturer defects — honored and serviced locally by our team.
- Professionally installed by technicians who perform lifts every week — precision alignment performed in-house as part of every installation.
- Diesel-specific engineering — components designed for the weight and driveline demands of your truck.
- Tire clearance for 35"–37" rubber without modification — run the size you want without compromise.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | Universal Kit Box | Mono Leaf Rear | Chevy Silverado 1500 (19-23) GMC Sierra 1500 (19-23) | 21630991 |
| 1 | 6in Kit Crossmember Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX11 |
| 1 | Diesel 6in FR Kit Box | Chevy Silverado 1500 (19-23) GMC Sierra 1500 (19-23) | 217BOX10 |
| 1 | 6in FR Kit Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 21700991 |
| 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 |
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 Custom | 4WD |
| 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 RST | 4WD |
| 2025-2026 | Chevrolet | Silverado 1500 WT | 4WD |
- Tire size: 35″ to 37″ tall
- Lift height: 6″
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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