Hummm learn something everyday on here. I find if strange that they would put it there while it goes down the ASSY line? On the Corvette it makes sense cause it is with the chassis till the body is dropped. Anybody know the reason for it to go on the tank on LA Camaro's? You know the tank has to be installed from below after the body is going down the line. Chevrolet used them to be sure that the correct options got on the correct order did they not? That was what they were for on the Vettes.