Thanks. I am going to contact Pro Comp and see what they say. Are you running any hub rings?I am running 17" pro comps and did not have to run any spacers. However, my wheels were made probably 2-3 years ago.
As wolfman stated, another guy (5speedfronty) bought some new procomp wheels and had fitment issues. They were rubbing on his front calipers...I'm not sure if procomp changed the design of their newer wheels slightly or what. My pro comp wheels only clear my front calipers by around 1/4". It's a VERY tight fit, but i've never had any rubbing.