6-Inch Lift Kit with M1 Monotube Shocks for Super Duty 4WD (2005-2007)
- Fits 2005-2007 Ford F-250 and F-350 Super Duty 4WD in XL, XLT, Lariat, King Ranch, and Harley-Davidson Edition trim
- Kit contents: 6-inch upper arm kit, 6-inch lower arms, front 6in D-Coils, add-a-leaf, 3 inch block and U-bolt kit
- Two M1 monotube shock pairs included in the boxed kit
- Not for gas-engine trucks, dual-rear-wheel trucks, or trucks with rear overload springs
- Bolt-on installation with radius arm drop brackets for caster setting
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Dually models
Does NOT models with rear overload springs. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Lift Kit with M1 Monotube Shocks, fitment-checked
Rough Country 57940 is a 6-inch lift kit for the 2005-2007 Ford F-250 and F-350 Super Duty 4WD, built around two M1 monotube shock pairs. The boxed kit also carries 6-inch upper and lower arm assemblies, front D-coils, a rear add-a-leaf, and a 3 inch block and U-bolt kit. Gas-engine trucks, dually trucks, and trucks with rear overload springs fall outside the fitment.
Two M1 monotube shock pairs come packed with this 6-inch lift kit for the 2005-2007 Ford F-250 and F-350 Super Duty 4WD, which covers the XL, XLT, Lariat, King Ranch, and Harley-Davidson Edition trims shown in the fitment list. Around the shocks, the kit stacks 6-inch upper and lower arm assemblies, front D-coils, a rear add-a-leaf, and a 3 inch block and U-bolt kit, bringing the front up to sit level with the rear. Radius arm drop brackets let caster be set back in the factory window, so steering behavior stays familiar. Check engine and axle configuration first, then work from the downloadable Rough Country installation guide.
What’s in the box
Kit contents
- 1× 6in Up Arm Kit 1580 BOX 1
- 1× 6in Lower Arms 1580 BOX 2
- 1× Kit Box 1580 BOX 3
- 1× Add-A-Leaf 6111
- 1× 3 Inch Block & U-Bolt Kit 6539
- 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 57940 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 57940 |
| UPC / GTIN | 00840269918155 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 260 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here