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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.
Transcript of Top 5 Favorite John Deere Tractors. My #1 most favorite tractor is the John Deere 4440 made from 1978 - 1982 it was the most popular tractor of the iron horse series. The iron horse series consisted of the 4040, 4240, 4440, 4640, 4840, 8440, 8640. My second favorite John Deere tractor is the 2955.