I have an arcing machine, but it will be sometime before I have a garage to work in. There is a place I know of down near LA that still does it but I don't know if they will work on something you bring in yourself. I usually have them arc my shoes after they re-line them. There's actually another place down here that might do it, but I'll have to call and check with them. My only other suggestion would be to go to a truck repair place. They do things that no one else does anymore, like rebuilding leaf springs, etc. They probably arc brake shoes since most trucks still use drum brakes.