I havent had much of a vibration. Just mostly what seems like a bearing noise of which i know it is not. The front drive shaft doesn't spin while in 2wd so its gotta be with the front diff to axles. Really minor but being a tech for a while i tune in a little more than others.
I m running 20x9...
installed the 3.5 rough country lift and had noticed a wheel bearing/tire road noise only post install.
I installed the same lift and also noticed a wheel bearing/tire road noise (stocktires)after, that is variable with road speed. Noticeable to me but probably not to most. That isolator bolt...