With this construction, the skid plate initially is free of {HEAD ~ attachment} to {TAIL ~ the mounting plate} 
to
With this construction , the skid plate initially is free of { HEAD ~ attachment } to { TAIL ~ the mounting plate }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL