https://forum.e-bodies.org/wheels-t...s-cheap-tool-for-dentless-install/16945/

These dust caps were discussed recently on E-bodies.org. There are part #s in the link but double check that your friends 67 takes the same ones. The new caps have a tall lip. Taller then original ones. You might have clearance issues with the wheel center cap if you don't trim the caps to sit more flush to the hubs.