{HEAD ~ An actuator} for steering {TAIL ~ rear wheels} is reduced in size and its construction is simplified while preventing a degradation in the reliability 
for steering
{ HEAD ~ An actuator } for steering { TAIL ~ rear wheels } is reduced in size and its construction is simplified while preventing a degradation in the reliability
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH