Josh, an outside chance but is there anything written in grease pencil on the underside of the hood? Mine says "transport" for transport blue lower body color.
Greg, I know what you mean. I've had several trucks with instructions like that marked in grease pencil. The super deluxe Commercial Red 54 I had was marked " 3104 DEL" in white grease pencil across the firewall, for instance.
I just checked and there is no sign of any grease pencil markings that I can see on the firewall or under the hood. Though it is definitely Ocean Green both under the hood and the firewall, so I'm confident the hood has never been another color.
The Napco emblem shown is now sold as 57-59. Those were the "factory years". This indicates that the Napco kit may not have come with an emblem in pre 57 kits or that it was only on factory units. I Don't think the name "Powr Pack" was used until TF trucks.
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POWR-PAK was used from the beginning. I don't have a copy of the 53 medium duty advertisement, showing the earlier grille and split windshield, but I'll look for it. If you look very closely, you can see on the "You Asked For It" advertisement, the badge on the side of the hood. I used to have the original print of that ad that I lost in the fire two years ago. It's very apparent. I also had a version where the front hubcap, which is painted on, was not present.
