3-Inch Lift Kit with M1 Shocks for Ford F-250 4WD (2023–2026)
- Fits compatible 2023–2026 Ford F-250 Super Duty 4WD diesel trims — review all exclusions before ordering
- Does not fit gas engines, F-350, dually, or Tremor factory trim package trucks
- Kit contents: front 3.0-inch coils, radius arm drop brackets, rear block and U-bolt kit, and two M1 monotube shock pairs
- Radius arm drop brackets restore caster alignment for on-road stability
- Factory top-mounted overload spring equipped models require U-bolt SKU 7669
- Bolt-on install, no cutting or drilling — downloadable installation guide available; shipping weight: 148 lb
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas models
- Dually models
Does NOT F-350 models. Does NOT work on models equipped with Tremor factory trim package. To ensure adequate U-bolt length models equipped with a factory top-mounted overload spring will require SKU: 7669. Fitment on this page is based on the manufacturer’s application data.
About this kit
3-Inch Lift Kit with M1 Shocks, fitment-checked
Rough Country 43640 is a 3-inch lift kit for compatible 2023–2026 Ford F-250 Super Duty 4WD models, built around front 3.0-inch coils, radius arm drop brackets, a rear block and U-bolt kit, and two M1 monotube shock pairs. It is a diesel-only application: gas, F-350, dually, and Tremor package trucks are excluded.
This 3-inch lift kit for the 2023–2026 Ford F-250 Super Duty 4WD covers King Ranch, Lariat, Limited, Platinum, XL, and XLT trims shown in the fitment section. Front 3.0-inch coils lift the nose to even out factory rake, while the radius arm drop brackets bring caster back into range for predictable steering. Rear blocks and U-bolts finish the height, and M1 monotube shocks damp both ends. Trucks with a factory top-mounted overload spring need longer U-bolts, SKU 7669. Bolt-on installation with standard hand tools; a downloadable Rough Country installation guide is available.
What’s in the box
Kit contents
- 1× Block & U-Bolt Kit 1502BOX2
- 1× No Shock Kit Box 43630992
- 1× Kit Box 50220BOX1
- 1× M1 MONOTUBE SHOCK PAIR 770839P
- 1× M1 MONOTUBE SHOCK PAIR 770804P
- 1× 2023-2024 Ford F250/F350 Diesel Front 3.0" Coil 9465
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 43640 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 43640 |
| UPC / GTIN | 00840269933769 |
| Lift height | 3 in |
| Shock package | M1 series |
| Shipping weight | 148 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here