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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

7.5 Inch Lift Kit | Ntd | M1 | Chevy/gmc 2500hd/3500hd (11-19)

Part #: 25340UPC: 840269917134Brand: Rough Country

$1,689.95

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 Chevy and GMC 2500HD/3500HD owners who demand an aggressive lift without sacrificing factory ride quality, this 7.5" suspension lift kit delivers superior ground clearance while preserving your truck's original angles, torsion bar placement, and axle geometry. Designed with a Non-Torsion Drop layout, it gains 37–40 inch tire clearance and maintains factory comfort — no drivetrain changes, no differential modifications, no exhaust work.

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

  • Crossmember Box — 1/4" thick steel crossmember laser-cut and finished in Hammer Black for maximum strength and durability.
  • NTD Bracket Box — 1/2" thick Non-Torsion Drop brackets engineered to preserve factory torsion bar placement and proper axle angles.
  • 5–7in Kit Box — Progressive lift hardware calibrated to deliver smooth, predictable handling at full ride height.
  • 7in RR Kit Box — Rear lift components sized for balanced suspension geometry and factory-like ride quality.
  • Driver & Passenger Knuckles — Precision-machined steering knuckles that maintain proper caster and wheel alignment without additional shimming.
  • 253x Kit Box — Complete fastener and bushing kit laser-cut and pre-matched to your truck's geometry.
  • M1 Monotube Shock Pair (front & rear) — Fully configurable nitrogen-charged shocks; upgradeable to V2 or Vertex options to dial in your ideal ride feel.
  • Rugged Skid Plate — Heavy-duty protection finished in durable Hammer Black.

Important notes

  • This kit does NOT fit dually models due to u-bolt design variances.
  • Does NOT work with factory wheels. Models equipped with factory 17-inch wheels must use 17-inch or larger aftermarket wheels due to larger calipers and rotors.
  • Gas models may require minor modification to exhaust for driveshaft clearance.
  • Models equipped with factory rear overload springs require longer u-bolt kit (SKU 7664).
  • Minor cutting and drilling required during installation. A torsion bar removal tool (SKU 1067) is recommended for ease of installation.

Why customers pick this at Road Runner

  • Factory ride quality preserved — smooth, predictable handling with no harsh rebound or bottoming out.
  • Corrected geometry after install — proper caster angles and axle positioning maintained; alignment performed in-house as part of every lift install.
  • Rough Country lifetime warranty backed locally — every kit backed by our commitment and expertise.
  • Professionally installed by techs who do these every week — no surprises, done right the first time.
  • Fully configurable shock options — choose M1 monotubes, V2 upgrades, or Vertex reservoirs to match your terrain and driving style.
  • No drivetrain or exhaust rework — install stays clean, non-invasive, and hassle-free.

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

QtyPartPart #
1Crossmember Box | Chevy Silverado 2500 HD (11-22) Chevy Silverado 3500 HD (11-19)10130BOX3
15-7in Kit Box | Chevy Silverado 2500 HD (11-19) Chevy Silverado 3500 HD (11-19)10430BOX1
17in RR Kit Box | Chevy Silverado 2500 HD (11-19) Chevy Silverado 3500 HD (11-19)1253BOX11
1253x Kit Box | Chevy Silverado 2500 HD (11-22) Chevy Silverado 3500 HD (11-19)1253BOX6
1M1 MONOTUBE SHOCK PAIR770744P
1M1 MONOTUBE SHOCK PAIR770776P
1NTD Bracket Box | Chevy Silverado 2500 HD (11-19) Chevy Silverado 3500 HD (11-19)1253BOX13
1Dr Knuckle | Chevy Silverado 2500 HD (11-19) Chevy Silverado 3500 HD (11-19)1253BOX1
1Pass Knuckle | Chevy Silverado 2500 HD (11-19) Chevy Silverado 3500 HD (11-19)1253BOX2

Features

  • Factory Ride Quality Retained: Enjoy the same smooth, comfortable ride you expect while gaining an aggressive lift.
  • Stock Track Width Preserved: Keeps your wheels properly aligned with no additional modifications needed.
  • Factory Torsion Bar Placement: Torsion bars remain in their original location for a clean, hassle-free install.
  • Unmatched Ground Clearance: Conquer tough terrain with superior clearance that keeps obstacles out of your way.
  • Factory Axle Position Maintained: Axles remain at proper factory angles to prevent wear and ensure long-term durability.
  • No Differential Modifications: Install with confidence, no drilling or cutting required on your factory differential.
  • No Drivetrain or Exhaust Changes: Save time and effort with a kit that requires zero drivetrain or exhaust adjustments.
  • Fully Configurable Shock Options: Choose from nitrogen-charged N3 shocks, upgraded M1 or V2 monotubes, or premium Vertex reservoirs for the perfect ride.
YearsMakeModelDrive
2011-2019ChevroletSilverado 2500 HD LT4WD
2011-2019ChevroletSilverado 2500 HD LTRWD
2011-2019ChevroletSilverado 2500 HD LTZ4WD
2011-2019ChevroletSilverado 2500 HD LTZRWD
2011-2019ChevroletSilverado 2500 HD WT4WD
2011-2019ChevroletSilverado 2500 HD WTRWD
2011-2019ChevroletSilverado 3500 HD LT4WD
2011-2019ChevroletSilverado 3500 HD LTRWD
2011-2019ChevroletSilverado 3500 HD LTZ4WD
2011-2019ChevroletSilverado 3500 HD LTZRWD
2011-2019ChevroletSilverado 3500 HD WT4WD
2011-2019ChevroletSilverado 3500 HD WTRWD
2011-2014GMCSierra 2500 HD WT4WD
2011-2014GMCSierra 2500 HD WTRWD
2011-2019GMCSierra 2500 HD SLE4WD
2011-2019GMCSierra 2500 HD SLERWD
2011-2019GMCSierra 2500 HD SLT4WD
2011-2019GMCSierra 2500 HD SLTRWD
2014GMCSierra 2500 HD Denali4WD
2014GMCSierra 2500 HD DenaliRWD
2015-2019GMCSierra 2500 HD Base4WD
2015-2019GMCSierra 2500 HD BaseRWD
2011-2014GMCSierra 3500 HD WT4WD
2011-2014GMCSierra 3500 HD WTRWD
2011-2019GMCSierra 3500 HD SLE4WD
2011-2019GMCSierra 3500 HD SLERWD
2011-2019GMCSierra 3500 HD SLT4WD
2011-2019GMCSierra 3500 HD SLTRWD
2015-2019GMCSierra 3500 HD Base4WD
2015-2019GMCSierra 3500 HD BaseRWD
  • Tire size: 37″ to 40″ tall
  • Lift height: 7.5″
Requires minor cutting and drilling. Due to variances in u-bolt design this kit does NOT fit dually models. Gas models may require modification to the exhaust for driveshaft clearance Models equipped with factory rear overload springs require longer u-bolt kit SKU: 7664. For ease of installation, a torsion bar removal tool is recommended 1067. Tire & Wheel Details Does NOT work with factory wheels. Models equipped with factory 17-inch wheels must use 17-inch or larger aftermarket wheels due to larger calipers/rotor.

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.