I just tore off my swinger and compared it to the 92 1100 that I will put on
good news, even though the 88 uses a smaller bolt that the 92, the bushings outside diameter is the same as the 92! (inside diameter is of course smaller than the 92)
that means that all I have to do is use my old bolts and bushings and away we go!
Now to get my 92 shock and figure out the linkage