6-Inch Lift Kit with M1 Monotube Shocks for Ram 1500
- M1 loaded front strut pair and M1 monotube rear shock pair with 6-inch dual-rate rear springs
- Fits 2025 Ram 1500 4WD, factory 22-inch wheel trucks only — the knuckles are hub-specific
- Wheels of 20 inches or larger required; 18-inch and smaller will not fit
- Not for 4-Corner Air-Suspension trucks or Warlock models with the 1-inch factory lift; not recommended for AWD
- Crossmember box kit included; downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Models with 4-Corner Air-Suspension found standard on Limited and Limited Longhorn models
- Warlock models
- 18" or smaller wheels
Due to differences in hub sizing this kit ONLY fits models equipped with factory 22" wheels. This package is an available upgrade across multiple sub-models. Kit is NOT recommended for AWD models due to pinion angle issues which cause drivetrain vibrations. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Lift Kit with M1 Monotube Shocks, fitment-checked
The M1 version of the 6-inch Ram 1500 lift kit: an M1 loaded strut pair up front, an M1 monotube shock pair out back, and 6-inch dual-rate rear springs. It is cut for 2025 Ram 1500 4WD trucks wearing factory 22-inch wheels, and the supplied knuckles match that hub. Air-suspension and Warlock trucks are excluded.
Running M1 monotube damping front and rear, this 6-inch kit lifts 2025 Ram 1500 4WD trucks that came from the factory on 22-inch wheels; the driver and passenger knuckles included are sized for that hub, so trucks on other factory wheels need a different part. Alongside the M1 loaded strut pair and M1 monotube rear shocks are 6-inch dual-rate rear springs and a crossmember box kit. Skip it if the truck has 4-Corner Air-Suspension, standard on Limited and Limited Longhorn, or is a Warlock with its 1-inch factory lift; AWD is not recommended. Wheels must be 20 inches or larger.
What’s in the box
Kit contents
- 1× Kit Box 88330994
- 1× Crossmember Box Kit 33430BOX1
- 1× 22XL Factory Wheel Dr Knuckle 88430991
- 1× 22XL Factory Wheel Pass Knuckle 88430992
- 1× M1 Loaded Strut Pair 502062
- 1× M1 MONOTUBE SHOCK PAIR 770801P
- 1× RR 6" Dual Rate 9425-2
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 88440 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 88440 |
| UPC / GTIN | 00840269975929 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 285 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here