Rough Country · Authorized Dealer
6 Inch Lift Kit | Gmc Sierra 1500 2wd/4wd (2025-2026)
$1,399.95
Price does not include installation.
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$1,399.95
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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 GMC Sierra 1500 owners who want commanding ground clearance without sacrificing ride quality — this 6-inch lift kit combines durable steel knuckles, differential brackets, and a drop crossmember to preserve suspension geometry while lifting your truck. You'll gain clearance for 35"–37" tires and a more aggressive stance that turns heads.
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 — core lift hardware for 2025 Sierra 1500.
- 6-inch Driver & Passenger Knuckle Boxes — heavy-duty cast knuckles that reduce CV angles and maintain factory-like geometry during the lift.
- 6-inch Crossmember Box — drop-design component that preserves suspension angles for superior handling.
- Front Full Skid — protective underbody shield for the front suspension assembly.
- 6-inch Front Kit Box — completes the front-end lift architecture.
- N3 Shock Pair — nitrogen-charged shocks tuned to work with the new suspension geometry.
Important notes
- Requires cutting and drilling during installation.
- Does NOT fit Denali or Denali Ultimate models equipped with Adaptive Ride Control.
- Does NOT fit AT4 models (factory 2-inch lift) or AT4X models (factory 2-inch lift plus Multimatic DSSV dampers).
- Factory wheels are not compatible. You must use 20-inch or larger aftermarket wheels with 4.5-inch backspacing. Some wheels may require a 0.25-inch wheel spacer.
- Test-fit wheels before final installation to ensure proper clearance.
Why customers pick this at Road Runner
- Geometry-corrected design — steel knuckles and drop crossmember keep suspension angles close to factory specs, preserving ride quality and handling.
- Rough Country's limited lifetime warranty backed locally — no hassle when you buy from us.
- Professionally installed by techs who perform these lifts every week — precision counts on a new Sierra.
- Alignment performed in-house as part of every lift install — your truck leaves perfectly dialed in.
- One-stop shop — we handle wheels, tires, lift, and installation under one roof.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | Universal Kit Box | Chevy Silverado 1500 (2025) GMC Sierra 1500 (2025) | 110030991 |
| 1 | 6in Kit Crossmember Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX11 |
| 1 | FR Full Skid | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX3 |
| 1 | 6in FR Kit Box | GMC Sierra 1500 (19-23) | 217BOX8 |
| 1 | N3 Shock Pair | 23158 |
| 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 | GMC | Sierra 1500 Elevation | 4WD |
| 2025-2026 | GMC | Sierra 1500 Pro | 4WD |
| 2025-2026 | GMC | Sierra 1500 SLE | 4WD |
| 2025-2026 | GMC | Sierra 1500 SLT | 4WD |
- Tire size: 35″ to 37″ tall
- Lift height: 6″
Requires cutting and drilling. Does NOT fit Denali or Denali Ultimate models with as they are equipped with Adaptive Ride Control. Does NOT fit AT4 models as it is equipped with a 2-inch factory lift. Does NOT fit AT4X 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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