{TAIL ~ A hydraulic motor} is coupled to a front pair of wheels rotatably mounted to {HEAD ~ the front frame section} 
{ TAIL ~ A hydraulic motor } is coupled to a front pair of wheels rotatably mounted to { HEAD ~ the front frame section }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD