I know it's not the SPID but here's the build sheet. It's in pretty good nick! I've got the one for my 69 too. Both trucks had two,one in the seat back and a nicer one. The 69's nice one was between the gas tank and the cardboard tank cover surprised the tanks sweating didn't destroy it! And the 72's was smack dab in the middle of the floor where the passengers feet would rest. Taped to the cab floor under the carpet and underlayment. Interesting this truck (72) didnt have the "shipped to" Section filled out. Although it has the dealership it was ordered at? Perhaps the truck was picked up and never went to the dealership? Long drive from the Fremont plant to bothel for a pickup back then! What are halls thoughts?