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Hey guys I need some help. I finally got my Forgestar setup complete (F1419x10 front 19x11 rear), got my tires mounted (285/35/19 f and 305/35/19 r super sports) and had everything installed. Took it out on the highway and discovered they had an awful vibration at 70mph. Took them to a different shop, had them rebalance the wheels and tires (road force balanced) and make sure all the clips were removed from the mounting surfaces. It helped, but now I still get a vibration at 80mph+. What could be causing it and how to I fix it? It had none of these issues with the stock wheels a few days ago, so I'm certain it's something to do with the new setup. Any input is appreciated.