4.5-Inch Lift Kit with N3 Shocks for 2017-2022 F-350 Super Duty 4WD
- Fits 2017-2022 Ford F-350 Super Duty 4WD in XL, XLT, Lariat, King Ranch, Platinum, and Limited trim
- Diesel and dual-rear-wheel only — gas engine and single rear wheel trucks are excluded
- Also excluded: manual shift transfer cases, Tremor Factory Trim Package, and 2020 trucks with the 10-speed transmission
- Box contents: N3 shock kit, coil, fabricated block with 4.5-inch U-bolts, and front CV driveshaft
- Bolt-on install with radius arm drop brackets for caster correction; downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Single rear wheel models
- Manual shift transfer cases Does NOT work on models equipped with Tremor Factory Trim Package Does NOT fit 2020 models with 10-speed transmission
About this kit
4.5-Inch Lift Kit with N3 Shocks, fitment-checked
Rough Country 55931 is a 4.5-inch lift kit for the 2017-2022 Ford F-350 Super Duty 4WD, built around an N3 shock kit. It is a diesel, dual-rear-wheel application only: gas engines, single rear wheel trucks, manual shift transfer cases, Tremor Factory Trim Package trucks, and 2020 models with the 10-speed transmission are all outside its coverage.
The N3 shock kit is what sets this 4.5-inch lift kit for the 2017-2022 Ford F-350 Super Duty 4WD apart, and it ships alongside a front coil, a fabricated rear block with a matching 4.5-inch U-bolt kit, and a front CV driveshaft for diesel F-250/F-350 Super Duty 4WD trucks. Radius arm drop brackets hold caster in the factory range so steering feel stays predictable, and the assembly bolts on. Coverage spans XL, XLT, Lariat, King Ranch, Platinum, and Limited trims. Rear wheels may call for dually spacers. Read every exclusion, then download the Rough Country installation guide.
What’s in the box
Kit contents
- 1× Coil 5d 9297
- 1× N3 Shock Kit 155030
- 1× Kit Box 1504991
- 1× Drw Block U-Bolt 4.5in Kit 55900BOX1
- 1× CV Drive Shaft 5068.1
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 55931 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 55931 |
| UPC / GTIN | 00843030191573 |
| Lift height | 4.5 in |
| Shock package | N3 series |
| Shipping weight | 214.3 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here