A couple of thoughts.....There is a bad set of tires being supplied from China. Dirty *&)(*& actually eliminated bonding materials between the belts and the inner rubber. So watch out for that if they are imports.. Also if it is a one time vibration, could be mud or something stuck on a rim and thrown off later. You can also find a shop that balances while on the vehicle. Big truck shops often do that.

trafdlo