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