More particularly, the present invention relates to a transmission assembly for tractors coring an additional speed change mechanism, which is disposed within a rear half of a front housing, and a main speed change mechanism which is disposed within {HEAD ~ a front half} of {TAIL ~ a transmission casing} 
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More particularly , the present invention relates to a transmission assembly for tractors coring an additional speed change mechanism , which is disposed within a rear half of a front housing , and a main speed change mechanism which is disposed within { HEAD ~ a front half } of { TAIL ~ a transmission casing }
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