Jeremy I Have not installed the Hellwig Rear Swaybar yet. Hopefully I will next week. As far as the front issue with the GTA wheels rubbing on the new UMI upper control arm, I did resolve it. I took Prasads advice which was to install the original GN rims and see if they rub when you turn the wheel. Well, it did not rub . So I ordered a spacer made by Eibach, tested it and all is well.