Kaiser-Frazer production statistics in the Operating Reports indicate that between start of Kaiser Deluxe 2-door sedan production and October 31, 1950 less than 3% of the models built to that point were equipped with 3-speed manual, no overdrive. Unfortunately my Photo Viewer could not open the file so I can't place the production month.
While overdrive was considered a required option on Kaiser Deluxe models in the 1951 model year, dealers could order without if they wanted to.