a mating extension that extends from the cross member and through one of {HEAD ~ the plurality} of {TAIL ~ openings} defined in the wall of the housing, 
a mating extension that extends from the cross member and through one of { HEAD ~ the plurality } of { TAIL ~ openings } defined in the wall of the housing ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH