wheel locks up?

Ok this is weird, I centered my rack, aligned both driver and passenger side (using my eyes). Everytime I backup left turn it locks up. If I mess up the driver side alignment and make the wheel pointing in it doesn't lock up. What could be the problem?

So basically you did an alignment in your drive way and now when you back up your wheels lock up?

No, this was after my accident. Tire Shop replaced my lower control arm and tie rod end. My rack is fine for sure because I've tried to replace it already.