Thanks PR - I have seen lots of You Tube videos on doing an alignment as you suggest - I'll have to try this one time.
Yup - whenever you replace something in the suspension, an alignment is needed.
The right rear may have been sagging due to an accident in that corner. I can't confirm this, as the car was a GM business vehicle originally and they likely fixed it themselves. The reason why I "think" it was in an accident is the fact that the paint looks off in this corner. That said, the car has been like this since I got it with 10k miles on it. Never had a tire wear or wobble problem due to this.
The wobble is more pronounced at low speed and at highway speed (70mph). I've had "wheel wobble" before on different vehicles and it was almost always a unbalanced tire. Balancing the old Michelins didn't fix this. However, when I got the new Nexen's on the wobble and vibration went away completely, I concluded that the original shop owner was right (rightly or wrongly). The tires were failing (may have mentioned belt separation - can't remember).
A little confused by this. The ball joint attaches to the control arm with two bolts, not to the strut. It then bolts to the steering knuckle at the ball. On the new control arm I purchased, the mounting point on the control arm (two bolts) was not tight. I should have double checked this before I installed, but I didn't. As a result, the first alignment done may have been off due to the small amount of play (maybe).And the ball joint being loose is an indicator of a alignment point, aveo should not need it moved as it has two bolts on the strut but it could need moved. This could have been done at the alignment.
In the end, I'm not a concerned as to why an alignment is off as I am as to why my tire wobble remains. Car is going to the shop in 1/2 hour for a balance check. I'll let you know how it goes.