firstly, make sure that the wheel is perfectly balanced and tyres are perfectly aligned.... secondly, vibration or wobbling is caused by weka inner CV joint.... and are you sure the problem is wobbling and not vibration??? because vibration can be due to weak foundation bolts....another reason for wobbling is that you hit a pothole real hard and the axle flange or the hub is now out of center.... even the slightest deflection can cause the tyre to wobble like a mad man... worn kingpins, ball joints, bushings, tie rod ends, idler arms, strut rods, and even steering gears can let the geometry slip and cause wobbling....if nothing works or you don't want to go in all those things, ask your alignment guy to play with toe in and toe out settings... but that is just hit and trial.... you keep on playing with it until better results observed.....