6-Inch Lift Kit with M1 Shocks for Ford Super Duty 4WD (2008-2010) — Part 53940
- Fits 2008-2010 Ford F-250/F-350 Super Duty 4WD — check the fitment list for your trim and year
- Does not fit dually models or diesel engine models
- Kit contents: front coils, radius arm upgrade boxes, rear add-a-leaf, 3-inch block and U-bolt kit, and two M1 monotube shock pairs
- Factory rear contact overload springs must be removed during installation
- Adjustable alignment cam at the axle for caster correction; bolt-on install per Rough Country
- Downloadable installation guide available. Shipping weight: 234.0 lb
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Dually models
- Diesel engine models
Factory rear contact overload springs 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 53940 is a 6-inch lift kit for 2008-2010 Ford F-250 and F-350 Super Duty 4WD trucks, built around front coils, upgraded radius arms, a rear add-a-leaf, a 3-inch block and U-bolt kit, and two pairs of M1 monotube shocks. It does not fit dually models or diesel engine models, and the factory rear contact overload springs come off during the install.
This 6-inch lift kit for the 2008-2010 Ford F-250/F-350 Super Duty 4WD covers XL, XLT, Lariat, King Ranch, FX4, Cabela's, and Harley-Davidson Edition trims listed in the fitment section, with F-250 4WD coverage also shown for 2008-2009. The heavy-duty radius arms use rubber bushings and hold factory geometry, and an adjustable cam at the axle lets you dial in caster. Rough Country calls the installation bolt-on. Confirm your truck is not a dually or diesel before ordering, then work from the downloadable installation guide.
What’s in the box
Kit contents
- 1× Kit Box 1538BOX1
- 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× 6 Inch Coil Box 9296
- 1× Radius Arm Upgrade Box 53600991A
- 1× Radius Arm Upgrade Box 53600992A
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 53940 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 53940 |
| UPC / GTIN | 00840269917844 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 234 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here