{TAIL ~ a torsion bar} mounted to {HEAD ~ the frame} and having first and second opposite ends 
{ TAIL ~ a torsion bar } mounted to { HEAD ~ the frame } and having first and second opposite ends
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH