The Zone Offroad 4" Radius Arm Suspension System delivers improved stance, added ground clearance, and the perfect setup for running aggressive 37" tires. This complete lift kit includes full-length coil springs, heavy-duty radius arms, a forged pitman arm, a fabricated track bar bracket, sway bar relocation hardware, and brake line extensions, giving your F-350 DRW the height, strength, and stability needed for both work and weekend performance. Designed specifically for dual rear wheel gas models, this system maintains payload capacity while leveling out the stance for a clean, powerful look.
Optimized geometry correction ensures proper caster, centered axle alignment, and predictable steering feel at all speeds. FOX 2.0 Adventure Series shocks or gas-charged rear shocks provide improved ride control, reduced body roll, and enhanced damping over rough terrain. The combination of upgraded arms, precise steering components, and application-specific shocks gives your Super Duty a smoother ride, better stability, and confident performance on-road and off-road.
Features:
- Heavy duty boxed radius arms correct caster while boosting front-end strength
- Full length gas-specific coil springs deliver smooth and consistent ride quality
- Forged drop pitman arm improves steering angle and maintains factory stability
- Fabricated 1/4-inch steel track bar bracket recenters axle for proper alignment
- Front sway bar and brake line brackets maintain correct geometry at full travel
- Rear lift blocks and DRW-specific U-bolts restore level stance and load support
- Large 2.5-inch greaseable arm bushings reduce vibration and improve durability
- Designed for 37-inch tires with trimming and optimized for factory wheel fitment
Specifications:
- Brand: Zone Offroad
- Front Lift Height: 4 inches
- Rear Lift Height: 3 inches
- Front Lift Method: Coil Springs and Radius Arms
- Rear Lift Method: Lift Block and U-Bolts
- Shock Options: Gas or FOX 2.0 Adventure Series
- Track Bar Bracket: 1/4-inch Fabricated Steel
- Pitman Arm: Forged Drop Design
- Steering Stabilizer: Single OE-Style Included
- Vehicle Type: Dual Rear Wheel (DRW) Only
- Compatibility: Gas Engine Models Only
Included:
- (2) Front Full-Length Coil Springs
- (2) Rear FOX 2.0 Shocks
- (2) Heavy-Duty Radius Arms
- (1) Forged Drop Pitman Arm
- (1) Front Track Bar Drop Bracket
- (2) Sway Bar Relocation Brackets
- (2) Front Brake Line Drop Brackets
- (2) Front Bump Stop Extensions
- (1) Rear Lift Block
- (4) Rear U-Bolts
- (1) Rear Brake Line Relocation Bracket
Fitment:
- 2020-2021 Ford F-350 Super Duty 6.2L Gas 4WD DRW
- 2020-2021 Ford F-350 Super Duty 7.3L Gas 4WD DRW
Notes:
- 3 Year Warranty
- Gas Models Only
- Dually Models Only
- 37x12.50 tires may require minor trimming
- Factory wheels fit when paired with factory / original equipment tire size
- Two-piece rear drive shaft? Add a carrier bearing drop kit to reduce post-lift driveline angles and avoid / eliminate driveshaft vibration
- When adding the Dual Stabilizer option you will get the dual opposing steering stabilizer in addition to the single OE Replacement