1/2" wheel spacer? Any where I can find one?

1/2" is pretty thin. You're not going to find proper wheel spacers until you bump up to around 1.25" or 1.5" because there's not enough room to sink the lug nuts.

By "proper" spacers I mean the type that get bolted to your stock wheel lugs and have their own lugs installed that your wheels then attach to.

The other type is just a thin metal ring with holes that a) allows slop when mounting your wheel causing balancing issues, and b) reduces the amount of threads the lug nuts can grip, increasing the chance that a lug nut could back off or strip threads causing you to lose a wheel.

 

Sorry for the delayed response. I try not to be online on the weekends.

If you see a discrepancy in the amount the tires stick out, you'd be better off locating the cause rather than trying to compensate with spacers. There really shouldn't be a difference drastic enough to be noticeable.

Got any pics of your setup showing the difference between the two sides? Also include shots of your alignment cams. It's possible that your last alignment pulled the wheel in on one side and shoved it outward on the other.