Just went out and looked at my 38. Perhaps my terminology was wrong. When you lift the passenger side hood the vin tags are located on the side of cab under the hood between the firewall and the weather stripping. there are two tags one with vin and one with weight capacity. the top tag is about 2"X6" with vin. the bottom tag has capacity info about 1.5"X6" both tags are mounted so long side is vertical. If you have 4 (2 each Plate) screw holes or screws holding nothing in these positions the vin tags may have been removed.