A cylindrical, externally splined ring is press fit over {TAIL ~ the shoulder} of {HEAD ~ the flange} 
A cylindrical , externally splined ring is press fit over { TAIL ~ the shoulder } of { HEAD ~ the flange }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD