The torsion bar resists the twisting motion and brings {TAIL ~ the oscillating axle assembly} back to {HEAD ~ a level state} 
The torsion bar resists the twisting motion and brings { TAIL ~ the oscillating axle assembly } back to { HEAD ~ a level state }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD