As represented in the engaged positions of FIGS 2 and 3, the pins 84 seat through {HEAD ~ selected apertures} 14 in {TAIL ~ the elongated bar} 12 to define a selected overall length of the bar 12 extending in a forward direction of the bracket housing 
in
As represented in the engaged positions of FIGS 2 and 3 , the pins 84 seat through { HEAD ~ selected apertures } 14 in { TAIL ~ the elongated bar } 12 to define a selected overall length of the bar 12 extending in a forward direction of the bracket housing
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH