[Guest]

I assume I just pry the old ones out?

Also, what kind of glue do I use(I assume that's how they're put in there) to install the new emblem and trim ring on the steering wheel hub? If you're not sure what I'm talkin about, here they are:
http://www.mustangsunlimited.com/it...teering+Wheels+and+Components&CatKey=EMUSTANG

 

[Putt]

If you have the new ones, I'd see if there is any clips or tabs that retain them. Otherwise I think you are right, pry'em out and glue it back in. You might ask Mustangs Unlimited and see what they suggest.