Alright, so my car makes a vibration at 35-40 mph ever since I put these new tires on it. I've had them balanced and my front end aligned. My wheels are off of some nissan Z (I've spent hours and hours trying to figure out) and I was told by this guy at the tire shop that the gap between my hub and wheel makes it difficult for my wheel to be centered on my hub perfectly and is probably what the issue is.
He told me a brand called Mr. Gasket makes a gasket that will fill that gap. I went to the parts store and they were all clueless. What do you guys think?