Left-Thread Wheel Stud

I need at least one (but will take more) left-thread wheel stud for a 1967 Barracuda. 7/16 inch with 20 thread size and .472 knurl. Does anyone have any? I have plenty of lugs. The mechanic did the usual and turned things the wrong way...[/QUOT
There's someone on eBay selling them 7/16" x 1 7/16".
eBay item number:
361540484566
I believe its for the front wheel only with 10" drum brakes and maybe disc brakes too. But someone please chime in and correct me if I am wrong.