The block contacts {HEAD ~ substantially all the outside surface} of {TAIL ~ the bushing} and substantially all the inside surface of the frame 
of
The block contacts { HEAD ~ substantially all the outside surface } of { TAIL ~ the bushing } and substantially all the inside surface of the frame
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH