6-Inch Lift Kit with Vertex Shocks for Ford Super Duty 4WD — Part 51750
- Fits 2017-2022 Ford F-250 and F-350 Super Duty 4WD, XL through Limited — review every exclusion below
- Excludes gas engine, dually, manual-shift transfer case, 3.5-inch rear axle tube, and Tremor Factory Trim Package trucks
- Only for trucks with factory rear contact overload springs
- Kit contents: 2x Vertex 2.5 front and 2x Vertex 2.5 rear shocks, 6-inch coil package, 6.5-inch block and U-bolt kit, transfer case clocking kit
- Bolt-on install with radius arm drop brackets for correct caster — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Dually models
- Manual shift transfer cases Does NOT fit models with 3.5" rear axle tube ONLY fits models equipped with rear factory contact overload springs Does NOT work on models equipped with Tremor Factory Trim Package
About this kit
6-Inch Lift Kit with Vertex Shocks, fitment-checked
Rough Country 51750 is a 6-inch lift kit for 2017-2022 Ford F-250 and F-350 Super Duty 4WD models, built around four Vertex 2.5 shocks, a coil package, fabricated rear blocks with U-bolts, and a transfer case clocking kit. Diesel-only fitment: it does not fit gas engine, dually, manual-shift transfer case, or Tremor Factory Trim Package trucks, and the truck must have factory rear contact overload springs.
This 6-inch lift kit for the 2017-2022 Ford F-250 and F-350 Super Duty 4WD covers XL through Limited trims listed in the fitment section. The box pairs Vertex 2.5 front and rear shocks with a coil package, a 6.5-inch block and U-bolt set, and a transfer case clocking kit, with radius arm drop brackets to keep caster where the factory geometry wants it. Confirm your truck before ordering: rear factory contact overload springs are required, and trucks with a 3.5-inch rear axle tube are excluded. A downloadable installation guide is available. Shipping weight: 307.3 lb.
What’s in the box
Kit contents
- 1× 6 Inch Coil Box 9296
- 1× 6.5 In Block U-Bolt Kitoverloads 1550BOX2
- 1× Kit Box 1504991
- 1× Univ. 3 4 X 4 1 X 1 2in U-Bolt Kit 7675
- 1× Transfer Case Clocking Kit 55003
- 2× Vertex 2.5 FR 6 In 685754
- 2× Vertex 2.5 RR 6 In 695805
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 51750 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 51750 |
| UPC / GTIN | 00843030153397 |
| Lift height | 6 in |
| Shock package | Vertex series |
| Shipping weight | 307.3 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here