The FAM shows the data plate mounting, on Section 1. Sheet 10.00, but since it's a 1953 drawing, it calls out the rivets that were used in later trucks ('51 and later).
Here's an article from Jim Carter that discusses the screwed on data plates. Link


Kevin
1951 Chevy 3100 work truck
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Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.