This tractor was made from Model A parts and sold in the Sears, Roebuck catalog in 1938-39.
Oh, I thought the above was the answer. Then it must be The Sears Thrifty Farmer Tractor Conversion Kit
This tractor was made from Model A parts and sold in the Sears, Roebuck catalog in 1938-39.
This wasn't a kit but you are getting closer.
Sears, Roebuck & Co. first offered this tractor in 1938. In 1937 Sears contracted with the Peru Wheel Co., Peru, Ill., to build a tractor both reliable and affordable. The tractor used rebuilt Ford Model A engines. The frame and most of the castings were produced at the Peru plant. The transmission was a standard Model A 3-speed with only a slight change in the shifting lever to make it easier for the driver to shift gears. About 500 of these tractors were built from 1938 to 1939 before production stopped.