2020-2021 Powerstroke DRW F350 4" Radius Arm Suspension Lift System-C/O (BDS1563F)
Built to take full advantage of the factory suspension design, these 4" radius arm systems correct suspension, steering and driveline geometry with room for 37" tires. At the heart of this system is a pair of heavy-duty radius arms built to withstand whatever abuse you can throw at them. Using a high clearance design for extra ground clearance and are formed inward to allow for additional clearance of oversized tires. The additional 4" of lift comes from a pair of specially tuned FOX 2.5 factory series remote reservoir coilovers. They are an easy install using the supplied frame and axle mounting brackets, paired with FOX 2.0 performance gas shocks offer a smooth ride and improved control over rough terrain.
Tire & Wheel Combinations:
- 37x12.50 w/ 17x9 and 4.5"-5"
- 37x12.50 w/ 18x9 and 4.5"-5"
- 37x12.50 w/ 20x9 and 4.5"-5"
Notes:
- Removal of the factory leaf spring block required.
- Net rear lift will vary depending on the height of the factory block but will result in a level stance.
- If equipped with a 2-piece rear driveshaft, a Carrier Bearing Drop Kit may be required (BDS123402)
- Front exhaust modification may be required to clear the front driveshaft
- Torque wrench capable of 405 ft-lbs required.
- 37 x 12.50 tires may require minor trimming.
Installation:
- Click Here For Installation Instructions
- Difficulty: 5 (where 1 = easiest and 5 = complicated)
Part Number: BDS1563F

Front Fox 2.5 Series Remote Reservoir Coilovers
When you want the best in performance and capability, go with FOX. These race-proven FOX 2.5 factory series remote reservoir coilovers up the ante allowing for next-level damper capability and control all neatly packaged. Designed for bolt-on installation, the engineers at BDS and FOX teamed up to offer this race-winning technology into a bolt-on, pre-tuned coilover designed to perform and provide correct ride height right out of the box. From valving to spring rate, preload, and hose length these FOX coilovers are designed to take all the guesswork out of setting your vehicle up and are designed to be used with BDS lift systems. These coilovers use a large 2.5" body, 3" coil springs, 7/8" hardened carbon steel shaft, high flow piston, JM92 advanced racing shock oil, CNC machined 6061 T6 ends, and external remote reservoir improve damper capability across any terrain. Up our vehicle's performance with FOX 2.5 R/R Coilovers.
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Fox 2.5 Series Coilover w/ DSC Adjuster
These race-proven FOX 2.5 remote reservoir coilovers up the ante allowing for next-level damper capability and control all neatly packaged. Designed for bolt-on installation, the engineers at BDS and FOX teamed up to offer this race-winning technology into a bolt-on, pre-tuned coilover designed to perform and provide correct ride height right out of the box. From valving to spring rate, preload, and hose length these FOX coilovers are designed to take all the guesswork out of setting your vehicle up and are designed to be used with BDS lift systems. These have the added benefit of DSC (dual speed compression) adjustment for easy-to-use high-speed and low-speed compression tuning built into the end of the reservoir to dial in the performance for various terrains. These coilovers use a large 2.5" body, 3" coil springs, 7/8" hardened carbon steel shaft, high flow piston, JM92 advanced racing shock oil, CNC machined 6061 T6 ends, and DSC external remote reservoir improve damper capability across any terrain.
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Coilover Mounting Kit
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4" Front Box Kit
This Box Kit includes the following:
- Pitman Arm
- Driver & Passenger Side Brakeline Bracket
- Front Bump Stop Extension
- Driver & Passenger Side Sway Bar Drop
- Bag Kit
- Track Bar Cam Washer
- 1/8" x 1-1/8" cotter pin
- Zip Ties
- Bolt Pack - Sway Bar Drop Bracket
- Bolt Pack - Bump Stops
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3" Rear Box Kit
This Box Kit includes the following:
- 2 3" Rear Block
- 4 5/8 x 3-1/8 x 19 Semi-Round U-bolt
- 3" Bump Stop Spacer
- 2 Bolt Packs
- Bag Kit
- 5/8 Washers
- 5/8 High Nuts
- E-Brake Relocation Bracket
- E-Brake Relocation Clamp Bracket
- Logo Plate
- Rivets
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Radius Arm Kit
This Box Kit included the following:
- Driver & Passenger Side Radius Arm Assembly
- Bag Kit
- Radius Arm Cam Plates
- 18mm x 150mm bolts
- 18mm Prevailing Torque Nuts
- 3/4" SAE Washers
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Important: With the Coilovers & the Mounting kit provided, you have the option of keeping the factory location shocks or upgrading to Fox 2.0.