F-100 & 250 (1965-67)
Disconnect horn wire and turn signal switch wires under instrument panel at steering column. Slide plastic insulating out of steering column and off wires. Remove steering wheel, unscrew and remove turn indicator lever, remove turn indicator switch to steering column retaining screws and pull switch away from column flange. Attach piece of heavy cord to one wire to help pull all wires through column during installation. Remove turn indicator switch and wires from column, detach heavy cord from switch wires.