There was a post on here earlier this month that gave a link to a website that had the 5-start 4th gen SS wheels that had the correct back spacing for our cars. Can someone re-post the link?
I tried searching for it but came up empty handed.
Also, is there any difference between the 4th Gen SS wheels and ZR1 wheels? I was not sure if the width, backspacing, or lug pattern maybe different.

 

Sorry, but I can't help you with the site. I will check my old emails for a link. However, I remember the post and I checked the wheels out. They do have the correct backspacing, but the pictures they sent me looked real goofy. Nothing like the actual 17" ZR1/SS wheel. The spokes sat in way too far and the proportions were off. That's why I went ahead and got the real thing.

SS wheels were ZR-1 "style" with 17x9 only.
ZR-1 wheels were 17x9 front and 17x11 rear.
They are indentical in appearance with the exception of the center cap.
Backspacing was a little over 6". 2" spacers will be needed front and rear for 17x9.

 

Thanks Marc. I am kinda researching my options for wheels right now. My factory IROC wheels are not the greatest of shape. I would like to find some 17" 88-90 IROC style wheels that have the machine finish to them but to date I can not find anyone who makes them.

 

Found the site!

http://customwheelsmarket.com/chevro...ca-wheels.html