Well my cousin has some ruff racing R279s that he had on his 350z long story short, the z is gone and he's giving me the rims... for free ! I've been looking up offsets, widths, bolt patterns and all that good stuff. There 18 x 8.5 on the front and 18 x 9.5 on the rear (staggered). The bolt pattern is 5x120 tho =( I have a 2007 pontiac grand prix base. I've heard of rolling fenders and having the hub "tapped" not exactly sure what that means. The rims are basically brand new and the tires are too... its costing me nothing to get the rims what can I do to get these rims on my GP? Any kinda advice would be great thanx!