A coupler couples {HEAD ~ motion} of the variable speed motor to the agitator drive shaft and {TAIL ~ basket drive shaft} 
to
A coupler couples { HEAD ~ motion } of the variable speed motor to the agitator drive shaft and { TAIL ~ basket drive shaft }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL