Turn Signal Info

Yup, this is how the shuttles work in the switch, which was used from '62-'63 (with Packard terminals) and '64-'69 (with Delphi terminals). Keep in mind, though, not only the plastic parts of the switch wear and break. The shuttles and the stationary contacts wear physically over the years, which increases the switch's internal resistance—this dims and slows the brake lights and turn signals. You can clean 'em up and yank 'em back from the brink a time or two, get 'em working again, but sooner or later "buy a new switch" is the correct answer if the goal is operational reliability and crash avoidance.

(And I'm not just saying that because I sell the best new switches, LOL)