The polyacylate o rings are difficult to get. Ford don't even sell them anymore. Would you have a link for those at all?What were the O rings made of; the power steering fluid will dissolve many types of O ring. Nitrile rubber O ring gaskets that are not resistant to power steering fluid and dissolve to mush. Polyacrylate 'O' rings are best. Plumbers tape or master pipe sealant won't work either.