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