My 94 SVX has what I think is a balljoint problem. It is in the rotation of the tire and tire speed. It seems to be making a light thumping, and as the car accelerates, so does the thumping sound. It does not become louder upon turning however the breaks do need to be done (but I don't think a rotor would cause this type of sound, simply because there is no pulsation)

Any predictions?