Quote Originally Posted by matt5112 View Post
If you look up the bolt pattern of the rotors, they're between 115 and 120. The holes are also very large.

They're designed by GM to fit both bolt patterns as they use the same rotor on the 00-05 Impalas (and so on) as well as 98-02 F body.

The only time you'll run into issues there is if you try to run the Baer Eradispeed rotors. They're drilled for 5x120 and will need to be drilled again for 5x115.

Or you could just call and ask for specially made hats.
Interesting. How do the f-body rotors get centred on the hubs then? Is the big hole the same, and that is what centres it?