A drive shaft vibration dampener having {HEAD ~ an outer cylindrical housing} which attaches to {TAIL ~ the end} of the drive shaft 
attaches to
A drive shaft vibration dampener having { HEAD ~ an outer cylindrical housing } which attaches to { TAIL ~ the end } of the drive shaft
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH