I want to remove all the spacers under the right rearset since I took off the emis. cannister. I am trying to get the alum. bushing that the bolt goes thru at the exhaust can mounting bracket. I want the short left side bushing. All the Ducati Parts diagrams have the wrong P/N. When I orderby P/N I get a washer. All the dealers I order from are stumped, icluding FBF where I spent 45 min with Victor trying to suss this out. HELP!