Have you seen the moment arm on aftermarket Porsche swaybars? There's a square hole where the torsion bar fits. I have always wondered how to make this square hole. Do you think this is how they accomplish it? If not, how? I think I can build these sway bars for about $200 + some time at the milling machine. The blocks and collars can be purchased from an industrial supply house. Same story with the rod ends and links. Jürgen
