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