One in the truck was in bad shape, as below. Thought
this would be a quick fix but as usual there are challenges.
The hardest part was removing the rivets on the data plates

These turned out to be steel rivets. What I ended up doing that
worked pretty well was to carefully grind then down flush using
a diamond wheel on a drill press. Then I used a carpenters spring
loaded brass punch to knock them out. Took some patience and
practice.
Stripped old paint off, and applied a Rust-oleum Metallic finish.
Used a HF 3/32" pop rivet which fits perfectly in the old hole but
tight.
More pleasing to the eye now
