Cliff - I didn't see any instructions on Greg's site for pulling and replacing bezels - and that's what's needed here.
I've got a LM4 speedo doing the same thing.
You can try carefully prying up the crimp, but be gentle about it. The metal will want to bend outwards rather than straighten. When all done, you'll have to carefully tap it all back into shape.
When I do it, I've made a form that supports the outer surface of the bezel so it can't bend outwards.
If you decide not to do it yourself, you might find a speedo repair shop in your area. Or you could send it to me and I'll take care of it.