Hey Dale - Welcome to the CadillacForums. I sent a copy of this over to the Seville/Eldorado Section (the Biarritz *is* an Eldo, isn't it?)...here's a link. Hopefully someone will be able to help you soon. In the meantime, thanks for registering and enjoy the Board. BTW, we'd love to hear a bit more about your Caddy - color, condition, mileage, pictures... 
Edit: I sent the posts pertaining to the wheel removal to the Thread in the Seville/Eldorado Forum.
Edit: I sent the posts pertaining to the wheel removal to the Thread in the Seville/Eldorado Forum.