1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
Welcome to Allpar. This should be part of the turn signal switch in the column. There should be a pull button at about the 4 o'clock position, or a hole for it at least. This button is held in by a small phillips screw and the parts may be lost or somewhere in the truck if they fell out?