It is a traction bar and a control arm. The rules say you can replace a traction bar. For me, that ends it. Rules says you can.

Isn't this the same analysis as the front strut tube rule? The front strut tube can be replaced or modified per the express words of the GCR. But, it is also a suspension locating device.[/b]
The difference is that *all* struts are suspension locating devices. But only some traction bars are also control arms. Not the same thing.