The sleeve is drivingly connected to {HEAD ~ the drive shaft} by a universal joint , preferably a cardan joint, which is contained within an enlarged end portion of {TAIL ~ the sleeve} 
The sleeve is drivingly connected to { HEAD ~ the drive shaft } by a universal joint , preferably a cardan joint , which is contained within an enlarged end portion of { TAIL ~ the sleeve }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL