I think I solve the problem for now (maybe). Here is what I've done as of this posting. I've removed all the Cragar S/S lug nuts from the mags because they just would not stay tight. Then I replaced them with 7/16-20 acorn style nuts with the taper ends. Yes the same type lug nuts that is used on the Mopar Ralley Wheels. I've only driven the car a couple of times since trying these nuts, but they seem to be working and staying tight so far on the Cragar Mags. Who knew this would work. More time and some longer trips with the car will tell the true story.