Like the title says; all stock suspension GT500; and it wheel hops like hell. Roush has a "wheelhop reduction kit" that consists of a new upper control arm and bracket. This kit is about $300. That seems high for what you are getting. I don't want to replace all the control arms with poly bushings. I want it to ride as good as it did from the factory. Has anyone else used another upper control arm different than the Roush with good results. I rarely abuse this car, and it does not go to the track. I would just like to burn a little rubber now and then.