I am looking to put some bullet center caps onto the '57 Cadillac hubcaps that are on my 50 Chevy. I have read that the bullets have a threaded 1/4" hole that allows you to bolt them to a flat center cap. As you can see in the picture, the hubs on the front of my Chevy extend past where a flat center cap would mount. I can't just put a stock flat center cap on it and then bolt the bullet to it. Any suggestions on how I could go about mounting the bullet to the cap?