6-Inch Lift Kit with N3 Shocks for 2017-2022 Ford Super Duty 4WD
- Listed for 2017-2022 Ford F-250 and F-350 Super Duty 4WD — check every exclusion before ordering
- Excluded: dually, gas engine, manual shift transfer case, 4" rear axle tube, rear factory contact overload springs, and Tremor Factory Trim Package
- Kit includes a 6 inch coil box, radius arm kit and drop brackets, transfer case clocking kit, and N3 shock kit
- Fabricated rear lift blocks with a 4.5 in block U-bolt kit, shaped to resist axle wrap
- Bolt-on installation; downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Dually models
- Manual shift transfer cases Does NOT fit gas engine models
- Models with 4" rear axle tube Does NOT fit models equipped with rear factory contact overload springs Does NOT work on models equipped with Tremor Factory Trim Package
Does NOT F-350 models. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Lift Kit with N3 Shocks, fitment-checked
Rough Country 55630 is a 6-inch lift kit for the 2017-2022 Ford Super Duty 4WD, built around radius arm drop brackets, front coils, fabricated anti-axle-wrap rear blocks with a 4.5 in block U-bolt kit, and N3 series shocks.
This 6-inch lift kit for the 2017-2022 Ford Super Duty 4WD is listed against F-250 and F-350 applications in XL, XLT, Lariat, King Ranch, Platinum, and Limited trim, though the manufacturer exclusion note also names F-350 — confirm your configuration against both the fitment table and that note first. The kit bolts on and includes a transfer case clocking kit, radius arm upgrade hardware to set caster back where the factory intended, and N3 shocks valved for this application. A downloadable Rough Country installation guide is available.
What’s in the box
Kit contents
- 1× 6 Inch Coil Box 9296
- 1× Radius Arm Upgrade Box 53600991A
- 1× 4.5 In Block U-Bolt Kit No Overloads 1563BOX4
- 1× Radius Arm Kit Box 512BOX1
- 1× N3 Shock Kit 155030
- 1× Transfer Case Clocking Kit 55003
- 1× Radius Arm Upgrade Box 53600992A
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 55630 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 55630 |
| UPC / GTIN | 00843030190125 |
| Lift height | 6 in |
| Shock package | N3 series |
| Shipping weight | 289.4 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here