97- 04 mustang rims again !

If you have a 17 x 8 / 5.72 B.S. Mustang rim ( already machined wheel center bore ) , and in the front you need a 3/8" spacer ( for tie rod clearance ), don't you also need a centric-ring to keep the wheel hub-centric. Thus longer wheel studs too. ( for stock rotors.)
The reason I ask this is because, every couple of weeks, we are all giving a break down to a question posted, about what is needed to properly mount a bullit wheel. I'm sure some people feel like a centric ring isn't that important, but it's an option toward building a more solid recipe in the " how to tec. " When it came time to research, I couldn't even find the big bolt pattern center bore size listed. I'm guessing 71.5, maybe. But, horse shoes, and hand grenades later, and guessing isn't good enough. I've had lug-centric wheels, rush the installation and you can get a evil high speed shimmy. I found out the hard way once on a 150 mile interstate trip. When I arrived I had to barrow some tools to fix things, and re-tighten my front fender bolts.
Thanks...