Vibration over 75mph - 2011 2ss convert
I have this exact problem on my new 2011 2SS 'vert. Doesn't really feel like wheels/tires to me - more like a drive-train vibration perhaps from the drive-shaft or half-shafts. Tire balance issues usually would show up at lower speeds also, but my car is smooth up through 70. The vibration at 78 is bad enough that the image in the rear view mirror is blurry. Annoying for sure for a $43k car! My 2000 Z28 'vert was smooth as silk the whole way up to the limit.
Anyone have any luck getting this addressed? Any updates from GM on it?