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