Welcome To Ostrander GP Farms

    This site has been created as a resource to further collector's knowledge about John Deere GP tractors.  The information present has been contributed by a number of individuals with specialized interests and expertise.  That may be on production changes, wheels, carburetors, etc.  We are constantly looking for new items to add so feel free to email with questions, suggestions, or articles.  They will be sorted and added as time and appropriateness allow.  There will be a section of parts for sale, some GP and some that pertain to other models.

     Important to note, there will be another GP Rally.  Dates are September 5-7, 2006.  Click here for details.

     This collection began with the purchase of a 1929 GP Standard in 1984.  From that it has expanded to approximately 30 GP's and implements.  Considerable time has been spent in the John Deere Archives researching these tractors by combing the Engineering Decisions that accompanied the many changes during the 7 year production run.  The Decisions run the gamut from notations about metal thicknesses of wheels to wholesale changes of internal engine parts.  They include serial numbers of two dozen tractors in 1934 that had factory installed oil bath air cleaners.  There are even notations stating which Champion sparkplug  changes were made for tractors and why.  Many of those decisions show the constant pressure Deere was under to lower costs in the tractor while increasing the power of this model.  Changes were made that saved a nickel per tractor. 

     So come in and explore, learn, email or call us.