I went and did a little research on the 37 LaSalle. It looks like ALL of the glass in it is flat glass. If that is correct, there is really no reason to seek out Caddy glass. All of it can be cut by your local Glass Shop. It would need to be laminated safety glass, but thats nothing special really and any well equiped Glass Shop will be able to furnish it and cut it to your pattern. The secret is making good patterns, but a car guy will be able to do that. Good Luck

RS