6-Inch Lift Kit with M1 Shocks for Ford Super Duty 4WD (2008-2010) — Part 59440
- Fits 2008-2010 Ford F-250 and F-350 Super Duty 4WD — check the fitment list for your trim
- Does not fit gas-engine or dually trucks; rear overload leafs must be removed
- Kit includes D-Coil front springs, rear add-a-leaf, 3 inch block and U-bolt kit, and two M1 monotube shock pairs
- Radius arm drop brackets included to reset caster after the lift
- Bolt-on installation — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Dually 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 59440 is a 6-inch lift kit for 2008-2010 Ford F-250 and F-350 Super Duty 4WD trucks, built around front D-Coil springs, a rear add-a-leaf with a 3 inch block and U-bolt kit, and two pairs of M1 monotube shocks. It does not fit gas-engine trucks or dually axles, and rear overload leafs have to come out during the build.
This 6-inch lift kit for the 2008-2010 Ford F-250 and F-350 Super Duty 4WD covers XL, XLT, Lariat, King Ranch, FX4, Cabela's, and Harley-Davidson Edition trims listed in the fitment section. The front rides on D-Coil springs while the rear combines an add-a-leaf with a 3 inch block and U-bolt kit, and both axles get M1 monotube shocks. Radius arm drop brackets bring caster back into spec so steering feel stays close to factory. Confirm you have a diesel, non-dually truck, then work from the downloadable Rough Country installation guide.
What’s in the box
Kit contents
- 1× Kit Box 1594BOX1
- 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 59440 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 59440 |
| UPC / GTIN | 00840269918285 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 190 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here