determining a second test toe angle of {HEAD ~ the second wheel} relative to {TAIL ~ a second toe angle reference point} 
determining a second test toe angle of { HEAD ~ the second wheel } relative to { TAIL ~ a second toe angle reference point }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL