67 Radio Knobs

[chicof100]

Now I know many of you know that the 67 has a bunch of "67 parts only" Did you know that the radio knobs are also different? The 68-72 knobs will work but the correct 67 knobs have a longer shaft. The 67 knobs are not marked while the 68-72 knobs are stamped with a C8 number. If I could post pictures I would just can't figure it out.