A pair of links are pivotally coupled to the torsion arms via {HEAD ~ a pair} of {TAIL ~ pivot mounts} 
of
A pair of links are pivotally coupled to the torsion arms via { HEAD ~ a pair } of { TAIL ~ pivot mounts }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL