Zone Offroad F1509 5-Inch Rear Box Lift Kit for 2020 Ford F-350 Dually

The Zone Offroad F1509 is a 5-inch rear box lift kit engineered specifically for the 2020 Ford F-350 Super Duty Dually (DRW) application. Designed as a precision-fit rear suspension component, this kit delivers the correct 5 inches of rear lift height needed to properly level or raise dually-configured Super Duty trucks when paired with a compatible Zone Offroad front lift system.

Zone Offroad engineered this kit specifically around the unique geometry and axle sizing requirements of dual-rear-wheel F-350 trucks, ensuring correct U-bolt sizing, block height, and bump stop geometry for a safe, properly configured lift.

Key Features:

• Provides 5 inches of rear lift height for DRW F-350 applications
• Designed exclusively for Dually (DRW) models — not a generic Super Duty block kit
• Includes correctly sized U-bolts matched to dually axle dimensions
• Rear lift block engineered to improve pinion angle geometry after lift
• Compatible with Zone Offroad's 6-inch Super Duty Dually lift systems as a rear box component
• Built from high-strength steel for durability on and off the road
• Backed by Zone Offroad's Factory Protection Plus limited lifetime warranty coverage

Note: If your F-350 is equipped with a two-piece rear driveshaft, a carrier bearing drop kit is recommended to reduce post-lift driveline angles and eliminate potential driveshaft vibration. This kit is intended for dually models only.