exup rattle

[breamcatcher]

Hi, i'm a little confused at this moment i know there is a small bush thats on the end of the arm shaft that is in perfect condition but ive been left to believe by the garage that this fits  into the collector box which is machined out and there isn't really a bush in there, if this is the case i,m not sure what to do, maybe a sleeve could be made but to measure something like that would be difficult. cheers Dave