Passage means provide {TAIL ~ a path} for {HEAD ~ lubricant} to flow into the cavity which has, within its boundaries, the internalexternal spline arrangement described, thus insuring continued lubrication of the spline connection 
Passage means provide { TAIL ~ a path } for { HEAD ~ lubricant } to flow into the cavity which has , within its boundaries , the internalexternal spline arrangement described , thus insuring continued lubrication of the spline connection
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH