The vertical alignment on the rear wheels is out of alignment.

It is obvious, by just looking at the profile of the vehicle, the vertical alignment of the rear tires are obvious out of alignment. How do I adjust the vertical alignment? Looking at the suspension system on the rear wheels, the rubber bushing are cracked, need to be replaced, but there is not an obvious method to adjust the vertical alignment on the rear wheels. What is the best way to make this correction? The inside of the rear tires are smooth.