I received this private message, which I will post for Larry Krupp:
I had a new tire put on at the Bosselman  truck stop in  Grand Island, NE.   They broke a stud off of the rear duals.  They said they couldn't find any at their supplier.  Does anyone know a good place to get one?    There are 10 studs for the rear duals on a Magnum chassis "98 marquis.    Larry k    Thanks for any help.