Been workin on my car for the last few days, tryin to get ready for hpde on the 19th. I swear everytime I work on it, the most simple tasks seem to cause so much headache! I waited two weeks for my custom rotors to come in for my 996 brakes. Went to finish the install tonight and the damn things won't fit! The hub center is too small. I thought coleman screwed up, but I picked up the ring from the original setup and it won't fit either. There's a little rust on the hub, but I don't think its thick enough to cause this. Are the porsche rotors with the ring installed supposed to be really tight? As in so tight it takes a dead blow hammer to put them on? Or is my car some kinda bastard with off the wall hubs? Guess I should have tried the ring before sending the rotor/spacer/ring to be used, but I assumed with all these kits out there it would be fine. Sorry for this useless post, just needed to vent a little!

It has been a long time since I put the 996 rotors on, but I remember the ring being tight, pretty sure hammer tight (slight interference fit).

Oh, well that makes me feel a little better. I have a friend who does machine work, so I think I'm gonna get him to put the hats on a lathe or something and take a few thousandths off so they will be snug, but not quite "hammer tight". Thanks for the response!

It sounds like a few passes with a drum sander on a portable drill will do the job. Don't take too much off, they should be snug. If there's visible rust on the hub you cans take that off with a strip of sandpaper.

Thanks Alan, I mite try that if I can find one. Lowes maybe? My friend is gonna give em a look to see what he can do. The factory rotors seem a little sloppy to me, so I was gonna let him kinda go in between what I have and what the stock ones are. I took some sandpaper to the hub, but it wasn't enough to make much difference.