They show the exact size of what the bushes should be, unfortunately they are not necessarily made to the exact size and if they are, there is no guarantee they will fit the supplied tubes.
An age old argument not only here, people have tried to gather information on standards, sizes etc, we tried to get a database together ourselves in the past but gave up due to lack of interest.
As Peter suggests, measure everything and make or find something that fits, or throw the bushes out and turn between centers using calipers.
Billy beat me to it init?
