6-Inch Lift Kit with M1 Shocks for 2008-2010 Ford Super Duty 4WD
- Fits 2008-2010 Ford F-250 and F-350 Super Duty 4WD — see the full fitment list for trims
- Does not fit dually models or gas engine models
- Rear overload leafs must be removed during installation
- Includes two M1 monotube shock pairs, 6in D-coils, upper and lower arms, add-a-leaf, and a 3 inch block and U-bolt kit
- Radius arm drop brackets allow caster to be set correctly for factory-like handling
- Bolt-on installation; downloadable installation guide available. Shipping weight: 259.0 lb
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Dually models
- Gas engine models
If vehicle is equipped with rear overload leaf's they will need to be removed. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Lift Kit with M1 Shocks, fitment-checked
Rough Country 58440 is a 6-inch lift kit for 2008-2010 Ford F-250 and F-350 Super Duty 4WD trucks, built around radius arm drop brackets that let you set proper caster so steering feel stays close to factory. Two M1 monotube shock pairs, coils, upper and lower arms, an add-a-leaf, and a 3 inch block and U-bolt kit are in the box. It does not fit dually or gas engine trucks.
This 6-inch lift kit for the 2008-2010 Ford Super Duty 4WD covers F-250 and F-350 trims from XL and XLT through Lariat, King Ranch, FX4, Cabela's, and Harley-Davidson Edition. It bolts on and raises the front to sit level with the rear while adding ground clearance for larger tires. Front lift comes from D-coils with dropped radius arm brackets for correct caster; the rear uses an add-a-leaf with a 3 inch block and U-bolt kit, and factory rear overload leafs have to come out. A downloadable Rough Country installation guide is available.
What’s in the box
Kit contents
- 1× 6in Up Arm Kit 1580 BOX 1
- 1× 6in Lower Arms 1580 BOX 2
- 1× 584s Kit Box 1584BOX1
- 1× Add-A-Leaf 6111
- 1× 3 Inch Block And U-Bolt Kit 6552
- 1× M1 MONOTUBE SHOCK PAIR 770754P
- 1× M1 MONOTUBE SHOCK PAIR 770762P
- 1× 6in D-Coil 9295
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 58440 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 58440 |
| UPC / GTIN | 00840269918209 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 259 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here