6-Inch Lift Kit with N3 Shocks for 2005-2007 Ford Super Duty 4WD with Control Arms
- Fits 2005-2007 Ford F-250 and F-350 Super Duty 4WD — check trim and drivetrain in the fitment list
- Does not fit diesel engines, dually trucks, or trucks without rear overload springs
- Exhaust modification required for front driveshaft clearance
- Kit contents include radius arm drop brackets, lower arms, front coils, add-a-leaf, 3-inch rear blocks with U-bolts, and N3 shocks
- Bolt-on installation — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Diesel engine models
- Dually models
Does NOT models without rear overload springs. Requires exhaust modification to clear the front driveshaft. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Lift Kit with N3 Shocks, fitment-checked
Rough Country 581.20 is a 6-inch lift kit for 2005-2007 Ford F-250 and F-350 Super Duty 4WD gas models. The kit pairs radius arm drop brackets and lower arms with application-valved N3 series shocks, front coils, an add-a-leaf, and a 3-inch rear block and U-bolt set. It does not fit diesel or dually trucks, or trucks without rear overload springs.
This 6-inch lift kit for the 2005-2007 Ford Super Duty 4WD covers F-250 and F-350 applications in XL, XLT, Lariat, King Ranch, and Harley-Davidson Edition trims. The upper and lower radius arm components drop the arm mounts so caster can be set correctly, keeping steering behavior close to factory, while the N3 shock kit handles damping on and off pavement. Plan on modifying the exhaust for front driveshaft clearance during the build. Confirm your truck has rear overload springs and a gas engine before ordering, then pull the downloadable Rough Country installation guide to see the full sequence.
What’s in the box
Kit contents
- 1× Add-A-Leaf 6111
- 1× 6in Up Arm Kit 1580 BOX 1
- 1× 6in Lower Arms 1580 BOX 2
- 1× 6 Inch Coil Box 9296
- 1× Kit Box 1580 BOX 3
- 1× 3 Inch Block And U-Bolt Kit 6552
- 1× N3 Shock Kit 158030
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 581.20 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 581.20 |
| UPC / GTIN | 00843030127275 |
| Lift height | 6 in |
| Shock package | N3 series |
| Shipping weight | 258.56 lb |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
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