Re: Has anyone tried to fab up their own rear sway bar??
It could be done. There is no load applied to the top of the shock towers during static cornering on a smooth surface, so a bar there doesn't really do anything. The spring loads are all under the floor on the subframe.
If you want to install a bar anyway, then it'd need to be attached to the metal around the area rather than the top of the shock, because the shock is rubber isolated, so a bar attached to that point will very literally do nothing, because it isn't solid.
If you're REALLY serious about going stiff, then something triangulated would be the way to go, and it'd be welded rather than bolted.