6-Inch Super Duty Lift Kit, M1 Shocks, 4.5-In Blocks
- Ford F-250 and F-350 Super Duty 2023-2025, 4WD
- M1 Monotube Shocks and a 6-inch coil box
- 4.5-Inch Blocks block and U-bolt set
- Supplied without the universal U-bolt kit
- Does NOT fit gas engine models or manual shift transfer cases
- Does NOT fit dually models or the Tremor Factory Trim Package
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Manual shift transfer cases
- Dually models
Models equipped with a 10-speed transmission must remove dial pin. Does NOT work on models equipped with Tremor Factory Trim Package. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Super Duty Lift Kit, M1 Shocks, 4.5-In Blocks, fitment-checked
One of Rough Country's 6-inch Super Duty kits, and the kit contents are what separate them: this one carries M1 monotube shocks with the 4.5-inch block and U-bolt set listed without overloads. Vehicle coverage and exclusions are common to the whole group.
M1 monotube shocks are what define this version — front and rear pairs of them, rather than the N3 units in the entry-level kit or the adjustable coilovers further up the range. They arrive with a 6-inch coil box, a front CV drive shaft and the 4.5-inch block and U-bolt set listed without overloads. Everything about the truck it fits is shared with the rest of the group. Shipping weight: 228.35 lb.
What’s in the box
Kit contents
- 1× Kit Box 43700992
- 1× 4.5 In Block U-Bolt Kit No Overloads 1563BOX4
- 1× CV Drive Shaft 5068.1
- 1× M1 MONOTUBE SHOCK PAIR 770754P
- 1× M1 MONOTUBE SHOCK PAIR 770805P
- 1× 6 Inch Coil Box 9296
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 43741 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 43741 |
| UPC / GTIN | 00840269935442 |
| Shock package | M1 series |
| Shipping weight | 228.35 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here