offset!!!
Also, here's an explanation of offset and an offset calculator to give you an idea how it works...
<a href="http://www.tirerack.com/a.jsp?a=AR4&url=%2Fwheels%2Ftech%2Foffset.htm">Off set Explained</a>
<a href="http://toy4two.home.mindspring.com/offset.html">Offset Calculator</a>
To use the calculator, use a 7.5" wheel with a 45mm offset for the stock numbers. Then plug in your wheel dimensions to see the effects.




