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