Rear alignment help needed

[mgbrv8]

A friend of mine just bought a 91. He was over showing it off and I couldn't help but notice that his driver side rear tire wasn't lined up correctly. Also the height from the tire to the wheel arc didn't seem right for both. The wheel bearings are new and I can seem to find any wear in the joints. This week end he will be over to pop off the wheels so we can have a look, can you all tell me what to check and look for that might be the issue??

Dave