Farmall Tractors

For 1955 models of International Harvester tractors, the numbered “hundred series” was introduced.  Although the hundred series included some new paint and a few new tweaks, they were essentially just overhauled letter series tractors.  In July of 1958, International Harvester hosted over 12,000 dealers from greater than 25 countries.  International Harvester showed off their new line of “60″ series tractors, which included the big, first of their kind six-cylinder 460 and 560 model tractors.  Although they seemed to have brought an innovative new line to the market, the excitement over the new line of tractors was short lived.  In June of the next year, International Harvester was forced to recall the 460, 560, and 660 tractors because their final drive components had failed repeatedly in production models.  This was the beginning of the end of a prosperous three decades for International Harvester.