The drain plug on my F134 always dripped. I tried to snug it up but with no luck. So after my last oil change, I notices the coper crush washer was all deformed. I then looked in the "extra gaskets" from the rebuild kit that the rebuilders gave me saying they were not used and low and behold I find a new one. Obviously, he never changed the original. But As I get ready to change oil the next time, I want to have several of these on hand. But all I can find at Walcks are paper ones. Any ideas on where to get these? The local box stores have no idea what it even is.