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