Ford F-350 Super Duty bed crossbars rusted and broken, requires replacement on Ford F-350 Super Duty

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Ford F-350 Super Duty owners report experiencing issues with rusted and broken bed crossbars, prompting them to consider various replacement and repair options. Some individuals have opted to replace rotted crossmembers with square steel tubing to combat rust problems. Others have utilized the Dorman O.E. Fix Solution, which involves lifting the bed off the vehicle and welding on new supports, although this can be a challenging task. Additionally, the NAPA Advantage Truck Bed Floor Support Kit offers a cost-effective repair solution by allowing for the direct replacement of damaged floor supports without needing to replace the entire bed assembly. Owners are also advised to inspect the underside bed rails for rust damage, as they may be more severely affected than the exterior. While some choose to swap the entire bed from another truck, others find it feasible to repair the existing bed, with fabrication shops able to create new crossbars from sheet metal. For severe rust issues, especially those causing holes in the bed floor, careful consideration between repair and replacement is essential. Owners are encouraged to remove loose paint or corrosion and seek professional help for extensive rust damage, with the recommendation to find a replacement bed from a southern truck to ensure durability. Regular maintenance and prompt attention to rust issues are crucial for prolonging the life of the truck bed.

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