[chopper]

Mrpink:

Before you do that, you might give this a try. The guys down at Discount Tire have a process which they perform called "road matching." It's an extra $15 per tire when you get new tires and it works like this. They mount the tire on the rim and then spin it slowly. The machine measures the radius of the tire and the rim separately and indexes the high and low spots of both. If the variation in the radius of the mounted tire exceeds a designated value, they de-mount the tire and rotate it on the rim to align the high spots from the rim with the low spots for the tire and then repeat the measurement process. Once the outer radius of the tire is uniform, then they spin balance it. I had this done to Jan's Miata when I replaced her tires a couple of months ago and the standard Miata steering wheel shimmy disappeared. I had it done at the Discount tire store down on Power by the Costco store. Not all of the Discount Tire stores have the machine. Hope this helps.