I had to replace the wiper motor. In doing so I had to remove wiper arms and air intake grille. For the reinstall of the grille, the Shop Manual refers to Inner and Outer Sealing Strips. While removing the Grille I didn't see anything resembling an Outer Seal Strip; the Inner Seal Strip was kind of a thick hardened bead of some putty or something. I'm not finding anything online suggesting these are rubber gaskets or seals available for purchase. Until I can figure this out I'm stymied on re-installing the grille. Any help would be greatly appreciated!
Try searching 59 - 60 Chevrolet seal ing strips