The links compensate for {HEAD ~ an arc} formed by the link pivot connections on {TAIL ~ the axle assembly} as it rotates about the longitudinal pivot axis 
The links compensate for { HEAD ~ an arc } formed by the link pivot connections on { TAIL ~ the axle assembly } as it rotates about the longitudinal pivot axis
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH