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 {HEAD ~ a main speed change mechanism} which is disposed within {TAIL ~ a front half} of a transmission casing 
is disposed within
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 { HEAD ~ a main speed change mechanism } which is disposed within { TAIL ~ a front half } of a transmission casing
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