U.S. Fordson production ended in 1928. In 1938, Ford introduced the Ford 9N tractor using the Ferguson three-point hitch system. In 1942 Ford introduced the 2N model tractor. This was surprising because so much steel was being used to manufacture products for U.S. and allied troops during World War II. In 1948 the very popular 8N tractor was introduced. More than 500,000 8Ns were sold between 1948 and 1952. The 8N was replaced with the 1953 "Golden Jubliee" tractor. After 1964, all tractors made by the company worldwide carried the Ford name. In 1986, Ford expanded its tractor business when it purchased the Sperry-New Holland skid-steer loader and hay baler, hay tools and implement company from Sperry Corporation and formed Ford-New Holland which then bought out Versatile tractors in 1988. In 1991 Ford sold its tractor division to Fiat with the agreement that they must stop using the Ford name by 2000. In 1998 FIAT removed all Ford identification from their blue tractors and rebranded them as "New Holland" tractors, but still with a blue colour scheme.