I had some new 195-65R15's put on my 72 Friday. It is my local mechanic's shop and he always lets me help with the tire work. I watched him balance the tires/wheels. it took a LOT of weights to balance out. He noted that every one of the Riviera wheels had a slight wobble to them, side to side wobble. HE got them to balance. It drives perfectly smooth at 55mph but when I get up around 60-65 there is some slight shake that I can feel in the ride. I don't suppose there is anything that can be done to "straighten" the wheels?