Important Notes
- Determine if your truck is equipped with standard (2-leaf main) or heavy payload (3-leaf main w/overload) factory rear leaf spring packs.
- Standard 2-leaf main applications will require kit # F48, heavy payload 3-leaf main w/ overload applications will require kit # F50. See "learn more" example image.
- Two-piece rear drive shaft? Add a carrier bearing drop kit to reduce post-lift driveline angles and avoid / eliminate driveshaft vibration.
Wheel and Tire:
- 37x12.50 tires may require minor trimming.
- Factory wheels fit when paired with factory / original equipment tire size.
Features & Benefits
- High strength front coil springs improve ride quality.
- Radius arm drop brackets to correct caster and maintain suspension geometry.
- Forged pitman arm and track bar relocation bracket to correct steering angles and recenter front axle.
- Bump stop relocation, sway bar relocation and brake line relocation to maintain factory-like operating angles.
- Replacement 5" rear lift blocks and u-bolts to lift and level the stance
Take your Super Duty to new heights with this 4" lift kit from Zone Offroad. Kits include everything needed from full length coil springs and stout radius arm relocation brackets to steering correction and rear lift to level the stance. Get the look, performance, and capability your truck deserves with clearance for 37" tires.
Recommended Tires & Wheels
(Trimming may be required)
- 37 x 12.5 with 17 x 9 and 5 in. Backspace
- 37 x 12.5 with 18 x 9 and 5in. Backspace
- 37 x 12.5 with 20 x 9 and 5 in. Backspace
Rear Lift Option
Some F250/350 factory options increase the main leaf pack count from 2 to 3 leaf's (this is for top overload options only). Be sure to verify which factory leaf spring configuration your vehicle has and choose the appropriate option.
- Factory Overload – 3 Leaf
- NO Overload – 2 Leaf
Shock Option
Nitro Series
- Nitrogen-charged
- Twin-tube design
- 10-stage velocity-sensitive valving
- Dual-welded ends for increased strength
- Self-lubricating seals
- Black powder coat finish
FOX 2.0 Adventure Series
- 2-inch diameter steel body
- Internal floating piston (IFP) monotube design
- Large 5/8-inch hard chrome plated heat-treated alloy steel shaft
- Race-developed high-flow piston design
- Application-specific valving to maximize performance
- Long-lasting clear anodized finish
