65 'Cuda: Reverse thread wheels?!

I have the same problem with my 67 fish car. Every time I take it to a tire shop I have to hang around and specifically tell them it's an old Mopar and it has left-handed threads on the left side. The older guys know but the young guys just look at me like I've lost my mind.... duh! The studs are easily available but not as readily as they used to be.