Craig, it sounds like you need the spanner socket.
I'm not sure of the exact size, but I'm sure this is it right here.

http://www.nationaltoolwarehouse.com...qx/product.htm

Haynes always fails to mention you need special tools haha. Go to your local auto parts store and they should be able to hook you up.

I should have taken photos a couple weeks ago when I did mine.
Maybe I'll do it again and post an article.