Sounds legit. We have this issue on Volvos, usually the bigger cars XC90's and new S80's. Pretty much you use the cups for ball joints to press out the old bushing and then there's a special tool, it's two pieces that go around the whole (new) bushing to squeeze the circumference smaller while pushing it in the bore. This is an interference fit meaning that the bushing circumference is larger than the bore it's in. Then the bushing is pressed in the bore. As far as tire wear... sure, it's possible, worst case scenario. You gotta think that anything wears tires. There are specifications that the auto maker devises for tires to wear evenly. If any steering/suspension component is worn/broken/defective then the car won't hold those specifications. Rubber components break down easier than polyurethane. Do a search on the internet for "Running toe of zero" that is the goal of any alignment.