Help - vibrations from front end on new 14s not there with the 13s on

BillGrissom has it right. Check the center hole in the 13" wheel and then check the 14" wheel. If the 14" is larger even 1/8" it will cause this. The center hole has to fit the hub to center the wheel. The lug nuts only capture the wheel. Lug nuts WILL NOT center the wheel. I went through all your pain and stumbled upon the hub centric rings. I couldn't find one that fit both my wheel and my hub. I bought one that fit the wheel and was too small for the hub. I put them on the lathe and turned them out to the correct ID. Runs smooth as silk now. Check here for centric rings. http://www.justforwheels.com/index.jsp?cat=hubcentric
Tom