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★★★★★ 4.9 (625 Google reviews) · Marietta shop · 📞 (678) 400-6467 · 🗺️ Get Directions · Live From The Shop
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Rough Country · Authorized Dealer

6 Inch Lift Kit | Mono Leaf Rear | Vertex/v2 | Gmc Sierra 1500 2wd (25-26)

Part #: 111557UPC: 840269978739Brand: Rough Country

$2,809.95

Price does not include installation.

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*Estimated lease-to-own payment. Final approval and terms are determined by the lender. See all financing options →

🛠️ 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 2WD owners who want commanding lift with factory-like suspension geometry, this 6-inch lift kit combines steel knuckles and drop crossmembers to preserve control-arm angles while gaining serious height. You'll clear 35–37" tires and maintain ride quality through precise engineering that keeps suspension components close to their factory setup.

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 suspension components for 2025–2026 models.
  • 6" Driver & Passenger Knuckle Boxes — heavy-duty cast knuckles that reduce control-arm angles and retain factory geometry.
  • 6" Crossmember Box — drop crossmember design maintains ideal suspension geometry for superior handling.
  • Front Full Skid — protective underbody shield and structural reinforcement.
  • Vertex 2.5 Adjustable 8-Step Front Struts (Pair) — dampers tuned for the 6" lift with 8-position ride-height adjustment.
  • V2 Monotube Shock Pair — rear shocks engineered to complement the mono-leaf rear and preserve factory-like geometry.
  • Upper Strut Spacers — deliver uncompromised strength and rigidity at full lift height.
  • Rear Blocks, U-Bolts & Hardware — complete rear-end stack with fasteners for secure fitment.

Important notes

  • Does NOT fit Denali models — Denali trucks are equipped with Adaptive Ride Control and are not compatible with this kit.
  • Aftermarket wheels required — factory OE wheels will not fit. 20-inch or larger aftermarket wheels are mandatory.
  • Backspacing requirement — wheels must feature 4.5" backspacing. Some aftermarket wheels may require a 0.25" wheel spacer (Rough Country #1065). Always test-fit wheels prior to final installation.
  • Minor cutting and drilling required — professional installation is recommended for best results and to ensure proper alignment.
  • Strut compressor needed — the front strut installation requires a compressor tool; this is typically available at installation shops.

Why customers pick this at Road Runner

  • Geometry-corrected design — drop crossmembers and steel knuckles preserve factory suspension angles, so your truck rides and handles like it was engineered this way.
  • Rough Country lifetime warranty backed locally — we stand behind every Rough Country suspension product installed at our shop.
  • Professionally installed by techs who do these lifts every week — precision work every time, with attention to detail that matters.
  • Alignment performed in-house as part of every lift install — your truck leaves level and dialed in.
  • Parts in stock — Rough Country kits ship from our location; most installs happen the same day or within days.

Ready to build it? Call (678) 400-6467. Hablamos Español.

QtyPartPart #
1Universal Kit Box | Mono Leaf Rear | Chevy Silverado 1500 2WD (2025) GMC Sierra 1500 2WD (2025)111530991
16in Kit Crossmember Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021)217BOX11
1FR Full Skid | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021)217BOX3
1Vertex 2.5 Adj 8-Step FR 6in Left | GMC Sierra 1500 (19-23)680029L-2
1Vertex 2.5 Adj 8-Step FR 6in Right | GMC Sierra 1500 (19-23)680029R-2
1V2 MONOTUBE SHOCK PAIR760739-2
16in Kit Dr Knuckle Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021)21730BOX5
16in 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.
YearsMakeModelDrive
2025-2026GMCSierra 1500 ElevationRWD
2025-2026GMCSierra 1500 ProRWD
2025-2026GMCSierra 1500 SLERWD
2025-2026GMCSierra 1500 SLTRWD
  • Tire size: 35″ to 37″ tall
  • Lift height: 6″
Requires cutting and drilling. Does NOT fit Denali models as they are equipped with Adaptive Ride Control. 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.