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| I wanted 34K population one year. Standard were 32K and 36K. I figured that a driven sprocket with an intermediate number of teeth would work, found a weld a hub sprocket in the local farm store and a hex shaft hub in another shop in Ames, and had them welded together and planted 34K. In a year or two Shoup offered that different sprocket assembled. When I checked the field it did have the right number of plants per 15' 4" except that there was one odd extra seed.
Shoup's Spring 2013 shows 6 Transmission Sprockets for 7000 and 5 for 7200.
Size 50 sprockets work perfectly for the 2050 chain in late vintage 7000 planters.
Gerald J.
Edited by Gerald J. 2/11/2019 21:16
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JD7000 planter transmission alternatives
