Thanks! Got some scrubbing scraping to do. Will report back.The undercoating looks fresh, so mineral spirits might work. If not, try heat and a scraper. You only need to see a couple of digits to see if it matches the rad support, vs the IBM card. The location of the stamp is not exact, but it should be in the general area, mine was not under the bumper bracket.
Glad yours matched. Big Relief!Edit
I was told by previous owner the stamping was under bumper bracket
BUT, With the above photo I went out and ckd. with fingers crossedNot that I was too worried.
BUT,,,
And Sure enough. This is exactly where mine is stamped. AND it matches the tag and radiator support![]()
Hi YY1, If you look at the punch card, the car has no options except the sun visor package. This was a stripped down Coronet Deluxe.I think someone posted a decode guide for IBM cars on FBBO a while ago.
I'd work on that and see if the obvious options line up.
Also look for any OEM paint under things.
If we're already at the point where we are pretty sure the core support SO is different than the IBM card SO...we might be done.