Suspension and Components› Suspension Kits
Rough Country
6 Inch Lift Kit | OVLD | M1 Shocks | Ford F-250/F-350 Super Duty 4WD (17-22)
SKU: R04C 55440
Moderate — 2–4 hours
Description
Part #: 55440
Take your truck to new heights with Rough Country's 6in Radius Arm Suspension Lift! This all-inclusive kit comes with everything you need for a total trasnformation of your truck. Run up to 37in tires while preserving the smooth, factory ride quality with this impressive upgrade.\When changing a vehicle's suspension, the key to preserving ride quality is keeping the geometry of all suspension components as close to their factory angles as possible. Rough Country's new 6-inch Radius Arm Suspension Lift features a set of ultra-durable Radius Arms, precision fit to bolt right into the factory mounts for an easier install and a more factory-like angle. At 27lbs each, these beefy, upgraded Radius Arms dwarf stock equipment and feature durable durable rubber bushings for maximum vibration absorption.\This kit includes a set of lifted coil springs and ultra-durable, fabricated anti-wrap rear blocks that prevent binding and axle wrap. Best of all, this kit comes with your choice of Rough CountryΓCOs N3, V2 Monotube, or Vertex Adjustable Reservoir shocks! Includes Rough CountryΓCOs Lifetime Replacement Warranty
Features:
- Easy bolt-on installation
- Increased ground clearance
- Levels the front with the rear of the vehicle
- Radius arm drop brackets allow for properly set caster. Proper caster is crucial to maintaining factory handling and driveability.
- Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use.
- Fabricated blocks are stronger and offer a longer lifespan than cast blocks.
- Specially designed anti-axle wrap rear blocks maintain stock ride quality while eliminating common lift block problem.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Rough Country |
| Part Number | R04C 55440 |
Videos
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy