{TAIL ~ a receiving tube assembly} having {HEAD ~ a main receiving tube} attached to said main frame spaced forward away from said rearmost frame cross member, 
{ TAIL ~ a receiving tube assembly } having { HEAD ~ a main receiving tube } attached to said main frame spaced forward away from said rearmost frame cross member ,
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH