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The John Deere model GP was built in five distinct versions through the course of its production: 1  The standard-front GP, or John Deere Standard, built from March 1928 to February 1935. 2  The John Deere two-wheel tricycle-front GP, or GP-tricycle, of which twenty-three units were built between August 1928 and April 1929.
John Deere brought out a lot of new tractors in 2007 with 32 models in all. The year began with the introduction of the 5603 and 5625, both these are 82 hp and are a further extension of the 5003 and 5025 Series tractors.uring the fall of 1998 John Deere had a 360 hp prototype 9300T track tractor at it least three farm shows. During August 1999 the company had another dealer meeting in Moline, Illinois. It was here that the 360 hp 9300T and 425 hp 9400T were revealed to their dealers.