Mopar A-body custom rear sway bar

I wonder if they made an aftermarket rear bar back in the day? Reason is the donor car I bought had a bar mounted off a 69 cuda, so I kept it on there when swapping over to my 67.
It does`nt look factory, probably 3/4" bar.
I did not know that certain barracuda could be equipped with a rear sway bar of factory.