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