I pulled the rear seat out and was looking at the bottom when I noticed an old jute like piece of padding floating around...looks like it might have been attached to the springs. I fished it out, and noticed on the other side a piece of paper that had been glued to the jute with hand written model/rpo code note in pen:

13637 - 756

A51-B22-D55

m21

Was this normal?

Found one like this in both my '68s. Looks like fountain pen ink on a piece of adding machine tape. Its some sort of info from the trim shop, not a build sheet. Also a punch card is often found in the seats.

Thanks David...I'll snoop around for the punchcard.

I foundone also when I recovered my 68's seats. It was labled "Soft Trim Broadcast". As close to a build sheet as I could find. Like finding buried treasure.

i was lucky :D i found my build sheet on the back side of the passanger door panel all intacked and full readable the water sheild must have protected it for the 30 some year graemlins/hurray.gif . o yea its a 70 chevelle 2 door sorry