They are great but the pillow ball bushings on mine are worn out now.
Used to be silent and tight, now they pop and I can feel movements when I tried to twist the links with my hand.

This is a long shot, but does anyone know where I can get replacement pillow ball bushings?
Or anyone know the size of the bushings? Possibly I can go try to source some myself.

Thanks.

 

Cusco do replacements but whether they are the same as yours

https://www.cusco.co.jp/en/news/prod..._and_more.html

 

Out of interest how many km / miles have they done?

 

https://www.cusco.co.jp/en/pdf/Pillo...ing_subaru.pdf
According to the Cusco catalog, ALL their pillow ball replacement bushings need welding afterward being pressed in. I doubt anyone would want to do that even with stock arms. Pretty much guarantee i'll need to replace the whole arm if the pillow ball gets worn out again.

 

Only the rear rear lateral links are worn out, the rear front lateral links are still doing fine.
I don't have an exact number as they came with the car I bought 10 years ago, but I did put approximately 30,000km of road use on it on top on whatever it had before.
Life expectancy for road usage is at least 30,000km I would say.