The check balls Im looking are Delrin, not nylon. Delrin are very common, I just found out today, and cheap. I get most of my parts for the backhoe at the local auto parts store. I havent had much problem getting anything for it, the check balls are no problem now I know the right material. I was hoping someone on this site would say HEY those might be delrin not nylon, /forums/images/graemlins/laugh.gif Paul