I put GT wheels on my 68 coupe 30 years ago when I got it on the road from restoration. I need to replace the tires, probably wait until spring. Does anyone know what size the wheels are so I can start figuring out what tire size I want to buy? The GT wheels are chrome in the center, but if I remember correctly, the part that is covered by the outer trim ring is just steel, not chromed. Does that sound right?