While reading VAF I saw that someone had found these at the local Airplane Hardware Store (HomeDepot). I drilled the center out and press fit the bushing. I think 5/8″ is slightly big. I get the minimum down travel on my ailerons. I’ll change these down the road if need be.
Installed. The bushing is taking the compression load as it’s about 1/32 wider than the nylon bushing.