INSTALLATION:
To replace the click tongue on models where it is peened into place, use a dremel drill with a fine tip to remove the old click tongue and click button. Then peen the new ones into place.
NOTE:
On older 66, 67 and 68 reels a 36-60CH may be required. It measures .248 (roughly 1/4 inch) from just under the cap to the edge of the dropdown.
The 36-209 measures .283 (roughly 1/16 inch longer) Penn may have changed the 27-66 plate at some point, although there are no notes to that effect.