Marcus,
When I worked at Shelby Parts and Restoration, I took my car apart and Jim sent out my original upper and lower arms I removed, this was way back in 1991 or so. They returned bare metal and oiled in a heavy-duty plastic bag. In June of this year, I finally got them out of the bag, removed the oil and dipped them. I guess now it's a big liability issue with pressing in the correct ball joints.
Dave