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Home / Suspension & Lift Kits / Lift Kits / Rough Country 31940
Rough CountryPart 31940 · UPC 00840269917318

2.5-Inch Lift Kit with M1 Shocks for 2014–2018 Ram 2500 4WD

$769.95MAP price
In stock — 16 available
Shipping weight: 131 lb.
  • Fits 2014–2018 Ram 2500 4WD across Tradesman through Limited trims — see the full fitment list
  • Excludes rear air-ride equipped trucks and Power Wagon models
  • Kit contents: two M1 monotube shock pairs, one front 2.5-inch coil, one rear 2.5-inch coil
  • Coil-spring lift, not a spacer setup — described as a bolt-on installation

The Trail Fortress check

Will it fit your truck?

✓ Fits

2014–2018 Ram 2500 · 4WD
Big HornLaramieLaramie LimitedLaramie LonghornLimitedLone StarOutdoorsmanSLTTradesman

✕ Does not fit

  • Rear air-ride models
  • Power Wagon models

About this kit

2.5-Inch Lift Kit with M1 Shocks, fitment-checked

Rough Country 31940 is a 2.5-inch lift kit for 2014–2018 Ram 2500 4WD trucks, built around front and rear coil springs and two pairs of M1 monotube shocks. It does not fit trucks with rear air-ride suspension, and it does not fit Power Wagon models. Check your suspension type against the fitment list before ordering.

This 2.5-inch lift kit for the 2014–2018 Ram 2500 4WD covers Tradesman, SLT, Big Horn, Lone Star, Outdoorsman, Laramie, Laramie Longhorn, Laramie Limited, and Limited trims. Ride height comes from replacement front and rear 2.5-inch coil springs rather than spacers, and damping is handled by two M1 monotube shock pairs supplied with the kit. Rough Country describes the assembly as a bolt-on job that keeps factory ride character. Confirm your truck is not equipped with rear air-ride suspension and is not a Power Wagon, then plan the coil swap accordingly. Shipping weight: 131.0 lb.

What’s in the box

Kit contents

  • 1× M1 MONOTUBE SHOCK PAIR 770783P
  • 1× M1 MONOTUBE SHOCK PAIR 770800P
  • 1× 2014-2021 RAM 2500/3500 DIESEL FRONT 2.5" COIL 9446
  • 1× 2014-2021 RAM 2500/3500 REAR 2.5" COIL 9449

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 31940 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number31940
UPC / GTIN00840269917318
Lift height2.5 in
Shock packageM1 series
Shipping weight131 lb
Country of originUS
CategorySuspension & Lift Kits › Lift Kits

Why buy here

The fitment-first store

Manufacturer-listed exclusions shown. We publish what a part does not fit — before you buy, not after the return.
Sourced from the application data. Fitment on this page comes from the manufacturer’s application catalog, not a copied listing.
Real install docs. The actual step-by-step guide, linked right on the page.