i have a 4x4 chevy blazer and want to put 15x8 corvette rally wheels on it does anyone know if they will fit without any modifications i know the bolt pattern is correct does anyone have a pic they can post with them on it

 

I can tell you they will stick way out. Not sure of the back spacing on them but it is quite a bit less than 6". This "could" lead to some rubbing that you currently don't have.

 

i belive the back spacing is 4 1/4 would 15x7 be a better fit