Legally it is a variable depending on state law.
Here in PA I can replace ANY part of my truck if the purpose is "rust repair"
I can even replace the FRAME as part of one repair and the body as part of another.
TECHNICALLY speaking they are a bit more anal about frame numbers which was one of the minor reasons I kept my original frame when I did my 4x4 conversion even thought I had (and still have) a complete supercab frame set
HOWEVER I already HAD another cab so I'm eventually planning on replacing that as well...
As for the "special rivets" presuming you aren't trying to re-VIN a stolen vehicle and giving you a constitutionally required "
presumption of innocence" I will tell you that if you remove the dashboard the BOTTOM of the rivets are accessable
you can use a sharp (read brand new)
flush cutting diagonal cutter and remove most of the back side of the rivet and can usually with care and either a thin knife blade or thin screwdriver pry the VIN tag off...
Personally I'd go a step further... Take a dremel tool with a sharp rotary burr (Carbide not stone) and cut away the back side of the rivets until the VIN tag literally falls off.
You can do the entire job of remving the stem of the rivet
with a dremel but carefully avoid cutting too lon on any one rivet becasue cutting makes them heat up and the thin plastic covering on the VIN tag is easily damaged by heat
At that point a dab of Cyanoacrylate (super glue, preferably the "Gel" kind) will hold the rivet heads to the VIN tag, then you can use the thin "heavy duty"double stick foam emblem mounting tape. to put the Vin tag on the mounting tab.
The VIN will be firmly mounted and if the grey tape if carefully trimmed with a razor blade, will be invisible and will appear "kosher" to all but the most intrusive examination.
trim the tape to the EDGE of the tag as a gap UNDER the tag that is supposed to be riveted to a sheet metal tab... a GAP visible at the edge of two pieces that are supposed to be riveted together would be "noticeable"
Referencing the TV show CSI "Grissom" might notice it but nobody else would without intentionally smashing out the windshield.
for the final touch? toss a canadian dime on to
the dash so it falls onto the VIN tag
AD