{HEAD ~ an additional speed change mechanism} disposed within {TAIL ~ said front housing} and behind said first intermediate wall so as to perform a first speed change transmission between a primary shaft and a first speed change shaft , 
disposed within
{ HEAD ~ an additional speed change mechanism } disposed within { TAIL ~ said front housing } and behind said first intermediate wall so as to perform a first speed change transmission between a primary shaft and a first speed change shaft ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH