Caster problem after lowering
 

I lowered my car about 2" F&R. Now I tryed to get it to align and it will not. I am getting the camber pretty dead on but my caster is way off. I am getting -4 on the left and right. That is not a missprint. I am trying to get it around +4. I tryed to move the everything to get it into spec. The dealership I work at said they have not seen this before. The car has never been in an accident and was aligned perfectly 4 years ago before lowering. The entire front suspension is brand new and I installed the LS1 brakes. The car will not drive correctly at all for the last 3 months so I want to get this fixed. I was wondering if notching the K member will work.

Re: Caster problem after lowering
 

Are you sure you have the upper a-arms on the correct sides?

Re: Caster problem after lowering
 

Is that even possible to install them incorrectly? And if so does anybody have the numbers on the top of the arms so I can be sure I have the right ones on the right sides.