Clean them before & then after you get them back. I dought if they will be usable. If they are grooved that much & have wear through the years, they will probably be too thin. We used to go ahead with them if they were just a little beyond specs but these shops now won,t turn them if they are over max. Napa shows new ones as part number 640-1004 but I don,t know if they are still available.
