Fabtech 4-Inch Rear Box Kit for 2017-2026 Ford F-250/F-350 Super Duty 4WD Diesel (FTS22309)

Fits select 2017-2026 Ford F-250 and F-350 Super Duty 4WD Diesel models. This rear box kit is engineered to provide the necessary rear lift and geometry correction for Fabtech 4-inch suspension systems, ensuring a level stance and maintained ride quality.

This kit focuses on achieving a reliable rear lift height while preserving factory suspension travel. The primary lift is achieved through heavy-duty 5-inch lift blocks, which are paired with bump stop relocation brackets to prevent over-compression and protect your shocks and springs during off-road use. Designed as a direct bolt-on solution, this kit works in conjunction with Fabtech’s front 4-link or radius arm systems to center the axle and provide clearance for larger wheel and tire combinations.

• Fits 2017-2026 Ford F-250/F-350 Super Duty 4WD Diesel
• 5-inch rear lift blocks provide a leveled stance with 4-inch front systems
• Included bump stop relocation brackets maintain proper suspension cycling
• Corrosion-resistant finish on all components and hardware
• Direct bolt-on installation with no welding required
• Manufacturer Part Number: FTS22309
• Backed by Fabtech's 5-year, 60,000-mile warranty