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Instruction Sheets for Part Number ROU-57840
Rough Country M1 Suspension Lift Kits for 2005-2007 F-250 SUPER DUTY, F-350 SUPER DUTY - 57840
Part Number: ROU-57840
Rough Country M1 Suspension Lift Kits
Suspension Leveling & Lift Kits, Lift Kit, M1 Series, Coil Spring, Leaf Spring Block, Lower Control Arm, 6.00 in. Front, 3.00 in. Rear, Ford, Kit
See More Specifications
Estimated Ship Date: Nov 2, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
57840
Part Type:
Product Line:
Summit Racing Part Number:
ROU-57840
UPC:
840269918148
Front Lifted Amount Range (in):
6.00
Rear Lifted Amount Range (in):
3.00
Lift Style:
Suspension Lift Kit
Primary Front Lift Component:
Coil spring
Primary Rear Lift Component:
Leaf spring block
Max Tire Height (in):
37.00
Front Shocks/Struts Included:
Yes
Front Shock Quantity Per Wheel:
1
Front Shock Type:
Gas-charged adjustable monotube
Rear Shocks/Struts Included:
Yes
Rear Shock Quantity Per Wheel:
1
Rear Shock Type:
Gas-charged adjustable monotube
Brake Lines Included:
No
Hardware Included:
Yes
FMVSS 126 Certification:
No
Quantity:
Sold as a kit.
Notes:
Fits gas models only. Will not fit models with factory rear overload springs. Will not fit dually models. Gas models require exhaust modification to clear front drive shaft.
Rough Country M1 Suspension Lift Kits
Whether it's to turn heads, sling mud on a path less traveled, or simply to get extra clearance for those bigger tires, Rough Country M1 suspension lift kits offer amazing off-road performance at an incredible value. They are easy to install, and each kit includes the specific heavy-duty components and hardware needed for your truck's lift, plus Rough Country M1 shocks. Select the kit designed for your truck with the lift desired.
M1 shock features:
* 2 in. seamless extruded tube
* 46mm digressive piston
* Self-adjusting, deflective-disc independent rebound and compression
* 18mm centerless-ground, case-hardened, chromed, and super-polished rod
* 46mm monotube design ensures consistent, fade-free performance in all conditions
* Digressive valving instantly reacts to changing surface conditions
* Zinc plated for resistance against harsh elements
* Durable vulcanized natural rubber bushings
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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