My Rune has developed a cracking noise in lower link.
I think that due to seized bearings, lower link faces have worn out and are not flat, just like in this thread:
What is the width of each pivot?
My measures are 42,44mm for frame side and 46,92mm for swingarm side.

I'm thinking of sanding it down a bit and adding a steel washer or try to butt some steel inserts.

I don't really like the aluminum sitting on steel races.