The Shift-N-Step Full Floor Track System with Filler is precision-fit for the Ford Transit 148″ extended body with dual rear wheels, delivering full-surface support and a clean, finished appearance. Engineered for rapid installation and flexible reconfiguration, it accommodates wheelchair lifts, securements, and seating—no drilling required. The integrated filler panels cover the entire wheel well area, enhancing safety and aesthetic appeal while maintaining ADA compliance. Built for durability and ease of use, this system is a smart solution for commercial and accessible transport vehicles.