Dorman 999-995 Truck Bed Floor Support

Truck Bed Floor Support for Silverado and Sierra

Dorman 999-995 is an OE FIX truck bed floor support kit for rusted bed crossmembers. It lets you replace the failed floor supports instead of replacing the entire truck bed, helping reduce repair costs on affected Chevrolet Silverado and GMC Sierra applications.

• OE FIX solution for truck bed crossmember rust repair
• Restores structural support to the truck bed floor
• Direct replacement approach for targeted repair work
• Fits 2007-2014 Chevrolet Silverado 1500, N/A
• Fits 2007-2014 Chevrolet Silverado 2500 HD, N/A
• Fits 2011-2014 Chevrolet Silverado 3500 HD, N/A
• Fits 2011 GMC Sierra 1500, N/A, Built in Mexico
• Fits 2013 GMC Sierra 1500, N/A, Built in Mexico

Detailed Product Overview

This Dorman truck bed floor support is built for owners dealing with corrosion damage in the bed structure of a Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, or GMC Sierra 1500. Part number 999-995 addresses the failed crossmember area directly, making it a practical repair option when the original bed support has rusted through. This part cross-references GM OE 15277405 for the same application.

By focusing on the damaged floor support rather than the full bed assembly, 999-995 helps restore the bed’s load-bearing structure while keeping the repair more targeted. It is a fitment-based solution for 2007-2014 Silverado and Sierra truck bed floor support replacement needs.

Common Problems This Part Can Address

• Rust-through in the truck bed crossmember
• Weak or failing bed floor support structure
• Need to repair a localized section instead of replacing the full bed
• Corrosion-related bed support damage on Silverado and Sierra trucks
• Structural deterioration in the truck box floor area

Installation Notes and Tips

Inspect the surrounding bed structure before installation to confirm the repair area is sound enough for replacement. Verify vehicle fitment by year, make, model, and build details, especially for GMC Sierra 1500 applications noted as built in Mexico. Follow factory repair procedures and fastener specifications during installation.

Quality Assurance

Dorman OE FIX parts are engineered as repair-focused replacements for common OE failure points. Part number 999-995 is designed to address a known rust-related bed support issue on compatible Chevrolet Silverado and GMC Sierra trucks.