{TAIL ~ The forward ends} of {HEAD ~ a pair} of lower draft links are secured to the outer ends of the shaft  
{ TAIL ~ The forward ends } of { HEAD ~ a pair } of lower draft links are secured to the outer ends of the shaft
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH