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Northern Illinois | The class rating system is misleading. It declared by the manufacturer. If you look back to the 60 series the threshing and separator were inter change able. Only difference was engine and grain tank which wasn't a night and day difference. Still today the S 60 thru 90 use the same bullit rotor, concave, accelerator, rear grates and discharge beater (the 9870 80 & 90 use a 10 blade vs 5) but this year per the manufacture they are the newest latest and greatest tri stream added production | |
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