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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

2.5 Inch Lift Kit | Diesel | M1 | Ram 2500 4wd (2014-2018)

Part #: 31940UPC: 840269917318Brand: Rough Country

$769.95

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 Ram 2500 diesel owners who want a smooth, leveled ride without breaking the bank — this 2.5-inch lift kit combines easy bolt-on installation with factory-matched geometry to preserve your truck's handling and comfort. Rough Country's redesigned coil spring spacers and shock extension brackets work together to eliminate coil bowing and maintain optimal suspension angles, all while supporting 33–34 inch tires.

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

  • 2014–2021 RAM 2500/3500 Diesel Front 2.5" Coil — precision-engineered coil spring spacer that maintains factory geometry and isolator positioning to prevent coil bowing.
  • 2014–2021 RAM 2500/3500 Rear 2.5" Coil — matching rear coil spacer for balanced lift and level stance.
  • M1 Monotube Shock Pair (Front) — extended monotube shocks calibrated for your new ride height.
  • M1 Monotube Shock Pair (Rear) — extended rear monotube shocks for smooth suspension response across all conditions.

Important notes

  • Does NOT fit rear air-ride models.
  • Does NOT fit Power Wagon models.

Why customers pick this at Road Runner

  • Factory-correct geometry — coil spring spacers indexed to OE mount angles and isolator position eliminate binding and coil bowing.
  • Shock extension brackets let you reuse factory shocks at the correct angle for your lifted truck, saving cost without sacrificing performance.
  • 100% bolt-on installation — no cutting, welding, or invasive modifications required.
  • Rough Country lifetime warranty backed by local installation and service at Road Runner.
  • Professional alignment performed in-house as part of every lift install — corrected caster and geometry guaranteed.

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

QtyPartPart #
1M1 MONOTUBE SHOCK PAIR770783P
1M1 MONOTUBE SHOCK PAIR770800P
12014-2021 RAM 2500/3500 DIESEL FRONT 2.5" COIL9446
12014-2021 RAM 2500/3500 REAR 2.5" COIL9449

Features

  • Easy bolt-on installation.
  • Maintains factory ride quality.
YearsMakeModelDrive
2014-2015Ram2500 Laramie Limited4WD
2014-2015Ram2500 Lone Star4WD
2014-2016Ram2500 Outdoorsman4WD
2014-2018Ram2500 Big Horn4WD
2014-2018Ram2500 Laramie4WD
2014-2018Ram2500 Laramie Longhorn4WD
2014-2018Ram2500 SLT4WD
2014-2018Ram2500 Tradesman4WD
2016-2018Ram2500 Limited4WD
  • Tire size: 33″ to 34″ tall
  • Lift height: 2.5″
Does NOT fit rear air-ride models. Does NOT fit Power Wagon models.

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.