14" Lug spacing 66 Cuda vs 67 Cuda

Also, where's the best place to buy 20 chrome lug nuts for these hubcaps. Still learning about this car...one one the nuts tighten clockwise, the other side counterclockwise. When I questioned that, I was told "Welcome to Mopar
Left side of car may have left hand lug studs.

Lug NUTS are available look at local auto parts store, eBay, rockauto.

The LH lug studs are unubtainium.

some times used or NOS show up.

Also the torque on these 7/16 lug studs is 55 lbs, not the 100 like on 1/2 inch studs.

And yes it's a Mopar thing.