Brake Lights: One Side Only?

[Tatohead]

Hello again,
Still the new guy! Thanks for the help in other threads. In a nutshell, here is the situation:

Taillights (not brake) work on both sides
Turn Signals work on both sides
Brake light works on the left only

Because I've got right turn signal, I couldn't be the bulb. Because I have brake light on the left, it couldn't be the brake light switch.

And so my mystery....

Any help appreciated!

[PwrWgnDrvr]

Turn signal switch.

[Series1Utiline]

I had that exact same issue and through tracing wires from one end to the other found there was a bullet connector unplugged under the dash.

[Tatohead]

Do you by chance have a link or supplier for that switch? My turn signal cancel doesn't work, and the cam seems to be widely available. I assume I need the full mechanism and wiring? THANKS

[dodgeboykim]

Do you by chance have a link or supplier for that switch? My turn signal cancel doesn't work, and the cam seems to be widely available. I assume I need the full mechanism and wiring? THANKS

Try taking it apart and cleaning and tweaking it. New dielectric grease for slip. What have you got to lose.

[martincom]

You didn't mention your year/model and the turn signal switch did change over the years. So I can't be specific. I've seen them from the usual sweptline parts suppliers and on ebay. For some reason, the forum also blocks links from certain suppliers.

I replaced mine and it was a China repop. I had to fiddle with it (reaming/filing/sanding) to get it to not bind up. It works, but it could be better. When operating manually, when changing lanes, the off detent can be difficult to find and I've had the switch half way between on and off more than once. However, it is better than it was.

[Tatohead]

Thanks for the replies. 1968 D100

I got the steering wheel off and it was as expected. Cancelling cam arms are gone. The cam itself is riveted on, and only one screw is visible (is there another screw under the cam to remove the full unit?). The bad news: the plastic arm that holds the horn roller/spring is melted, and it looks like I'll need to replace the full unit anyway. Or, put on a remote horn button, but really want to avoid that if possible.

I am genuinely surprised that these aren't widely available. There are tons of Sweptlines still on the road!

[Tatohead]

Photo for reference. Just the one screw visible. Is there another in there for removal purposes? Thanks

[martincom]

I found an NSO horn switch on ebay last summer for mine. I've found the secret to finding a lot of these items is to search by PN, rather than application. A lot of folks selling parts bought out dealer inventories of obsolete items, and have no idea the application. If you need the PN, let me know. I have parts manuals from '36 to '76.