6-Inch Lift Kit with M1 Shocks for Ford Super Duty 4WD (2005-2007) — Part 59640
- Fits 2005-2007 Ford F-250 and F-350 Super Duty 4WD - see the fitment list for covered trims
- Does not fit diesel-engine models or dually models
- Rear overload leafs must be removed as part of the installation
- Kit contents include a 6-inch front coil package, radius arm drop brackets, add-a-leaf, 3-inch block and U-bolt kit, and two M1 monotube shock pairs
- 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
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 59640 is a 6-inch lift kit for 2005-2007 Ford F-250 and F-350 Super Duty 4WD trucks, built around front coils, radius arm drop brackets, an add-a-leaf, a 3-inch rear block and U-bolt kit, and two pairs of M1 monotube shocks. It does not fit diesel-engine or dually trucks, and rear overload leafs must come out during the build.
This 6-inch lift kit for the 2005-2007 Ford Super Duty 4WD covers F-250 and F-350 applications from XL and XLT up through Lariat, King Ranch, and the Harley-Davidson Edition. Drop brackets set caster back where the factory put it, which keeps steering and highway manners close to stock. The rear side pairs an add-a-leaf with a 3-inch block and U-bolt kit; if your truck carries overload leafs, plan on pulling them. Confirm your engine and rear axle configuration against the exclusions first, then work from the downloadable Rough Country installation guide.
What’s in the box
Kit contents
- 1× 593 Kit Box 1593BOX1
- 1× Add-A-Leaf 6111
- 1× 3 Inch Block And U-Bolt Kit 6552$89.95
- 1× M1 MONOTUBE SHOCK PAIR 770754P
- 1× M1 MONOTUBE SHOCK PAIR 770762P
- 1× 6 Inch Coil Box 9296
Priced components are sold separately here, so a worn shock or arm can be replaced on its own later.
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 59640 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 59640 |
| UPC / GTIN | 00840269918292 |
| Lift height | 6 in |
| Shock package | M1 series |
| Shipping weight | 187 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
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