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At any point in time during the 1933 and 1934 model years, the floors and subrails were basically the same for all of the passenger car body types and they are interchangeable. The tab in your photos only was present on Fordor and Phaeton bodies (the two passenger car bodies with four doors) manufactured in North America to support the aluminum sill plate in that depressed area to prevent the sill plate from being crushed for lack of support by entering and exiting overweight passengers.
Before someone points out that the station wagon also had four doors and much of their floors was unique, the key words above are "passenger cars". Ford classified the station wagon as a commercial vehicle, not a passenger car.