Configured for trucks without a factory overload spring (2-leaf main spring pack), paired with Nitro Series gas shocks. Nitro Series shocks feature a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends for increased strength, self-lubricating seals, a 2-inch diameter steel body, and a black powder coat finish.
Overview
This 4-inch lift kit from Zone Offroad is designed for 2017–2019 Ford F-250/F-350 Super Duty 4WD gas trucks. The kit can be configured with radius arm drop brackets or upgraded to Zone HD Radius Arms for additional strength and durability. Everything needed to reliably lift the truck is included, with the capability to run up to 37-inch tires. Kits include components for steering correction and rear lift blocks to level the stance. Shock options include Nitro Series Gas Shocks or FOX 2.0 Adventure Series for enhanced performance and control. These kits are backed by Factory Protection Plus, which includes a 5-year/60,000-mile drivetrain warranty and Zone Offroad's limited lifetime warranty.
Features
- High-strength front coil springs to improve ride quality
- Radius arm drop brackets to correct caster and maintain suspension geometry; Zone HD Radius Arms available as an upgrade for added strength
- Forged pitman arm and track bar relocation bracket to correct steering angles and re-center the front axle
- Bump stop relocation, sway bar relocation, and brake line relocation to maintain factory-like operating angles
- Replacement 2-inch rear lift blocks and U-bolts to lift and level the stance
Specifications
- Front Lift Method: Coil Spring & Radius Arm
- Front Lift Height: 4 inches
- Rear Lift Method: Block
- Rear Lift Height: 2 inches
- Shocks Included: Yes
Installation
- Estimated Installation Time: 4–6 hours
- Installation Difficulty: Moderate
Important Notes
- Check your rear springs to determine if your truck is equipped with a standard 2-leaf main spring pack or a heavy payload 3-leaf main spring pack with an overload spring, and select the appropriate rear lift option.
- Two-piece rear driveshaft? Add a carrier bearing drop kit to reduce post-lift driveline angles and avoid or eliminate driveshaft vibration.
- Front exhaust modification may be required to clear the front driveshaft.
- Fits SRW (Single Rear Wheel) models only.
- 37x12.50 tires may require minor trimming.
- Factory wheels fit when paired with factory/original equipment tire size.
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