I wanted to know if z06 rims will fit. I have an 87 convertible Iroc stock height. I want to run the new z06 that are 18x9.5 & 19x12 but I don't want to modify the rear quarters. but will the older z06 rims that are 17x9.5 & 18x10.5 fit alright? what size spacers? I have stock brakes now but am changing to ls1 brakes. also 10 bolt in back but going to 9". thanks in advance.

 

The backspacing is all wrong to fit on a third gen

 

I have seen the z06 rims on third gens what size spacers are needed?

 

2"