63-66 A Body Z Bar

I am glad cosgig chimed in on difference, I agree and would have pointed that out. I post two pics showing the difference. I have both. Your bellhousing will also will be important, as will pivot stud.
Looks like Brewers is out of early A z bars. I have a b'housing setup on ebay at moment. PM me for mo info. leave your txt number.

Zbar 63-6 A s6 (2).JPG

Zbar 64-6 V8 (2).JPG