Originally Posted by Texhawk
As pointed out in the service bulletin, the tires can be balanced, but the tire/wheel assembly may have a high or low spot that only shows up under load testing of the assembly. The wheel may have a slight high point and the tire may have a high point, that if they are not offset by the way the tire is mounted, could cause a vibration.
Could just be a bad set of tires.
And how do you test for that?