Two positioning bolts extend through {TAIL ~ the collars} and are threadedly connected to {HEAD ~ the two ends} of the axle 
Two positioning bolts extend through { TAIL ~ the collars } and are threadedly connected to { HEAD ~ the two ends } of the axle
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH