I knew there was something about the '63 cab that was different from the '60-'62, it's that front cab mount as RJ stated. I couldn't come up with it until I saw his reply. Also, the hood is acceptable on a '60-'61 as a replacement. It's not technically correct, but the later hoods were used as replacements after '62. Oh, and the dashes are the same. There are some differences in instrument panels and slight variations in heater levers, but overall the dashes are the same.
