Are 1953 Ford F-150 and f350 cabs the same?
No, 1953 Ford F-100 (there was no F-150 designation in 1953) and F-350 cabs were not the same. The F-350 was a significantly heavier-duty truck, and its cab was larger and more robust to accommodate that. While there might be some shared components, the overall dimensions and structure would be different.