What applications used the larger 13/16" sway bar? Would I expect to find one on all 396 cars?
No 396 cars got it.
It's about 2/3 of the way down the page. http://www.camaros.org/diffs69.shtml
COPO 9737...
This is odd because BB Novas got the 13/16 bar.Hope I'm allowed to say the N word here.
Nova also never got the L35 325hp 396.
For being similiar platforms, they often were different.