The C0NN casting number just means that the casting was designed in 1960. The design could have been finished and the designs filed with their records department on 12/31/60, and then they could have started using that casting to build transmissions as early as May or June of 1962 for tractors they would be building in August of 1962, which was about when they started making the new 1963 model year tractors, but since they were officially 1963 model year tractors, the part number would have started C3NN, not C2NN. So that's a spread of only about a year and a half between designing the casting and starting to build transmissions using that casting. I figure in reality it was probably somewhere in the 1.5 to 2 year range. That makes sense to me if they wanted to build some DDC transmissions to field test the new design before they started rolling them out to customers, especially after the black eye that they had already taken from rushing the first S-O-S design out the door.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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