A rear floor module for a motor vehicle body is disclosed. The rear floor module includes an upwardly-projecting trough having a floor and a back wall in vehicle vertical direction (z) based on the installation position. The rear floor module is also provided with a fastening structure including at least one fastening point for arranging a motor vehicle component in the trough. Motor vehicle configuration-specific or drive-specific motor vehicle components are arranged in a preconfigured manner on the rear floor module with the fastening structure.