Upper A-Arm. Left or Right, does it matter?

Thanks for the feedback. I do have them on the right way. I cant figure out why the wheel seems to sit so far forward in the fender well. I had my K-member out so thought that maybe it was too far forward, but there is no adjusting it. I adjusted the fenders after body work was completed but not so much as to throw them too far back. I'm hoping during alignment that the cam bolts can move enough that the front can adjust out and rear adjust in enough to centre the spindle in the centre of the wheel well.