I have a 1979 C20 and am way overdue for new tires. I was also thinking about ditching the 16.5" wheels, but am not sure what to get. I'm currently running LT9.5QR-16.5 Kumho Road Venture AT 825 D. I was looking at getting a tire/wheel package from TireRack, maybe some 16x8 Ultra wheels with a...