anyone know of a source for a 68 Dart turn signal switch? mine, being 40 years old, is very brittle and the plug on the end is almost completely gone. it wont plug into my harness at all. any ideas on where to find one? i know year one has them, but theirs dont have the plastic connector on the end of them. thanks for the help!

If the connector is the only part of it that's bad you might consider soldering in your wires on another type of connector on both halves. R&Ring the TS switch/harness is a pain if you can avoid it.

the whole thing needs replacing. the plastic on all of it is very brittle and falling apart.

Have you tried the local parts stores? You could get lucky.

RockAuto has them-
1968 DODGE DART 3.7L 3687cc 225cid L6 (B) : Electrical-Switch & Relay : Turn Signal Switch
DORMAN Part # 49305 More Info {HELP! - Carded}
wo/Tilt Wheel $12.41

that dorman part number is just the canceling cam, not the whole switch. no parts stores that i can find have the whole switch.

I can get one through a local store here. Something like $75. The store that has them is associated with Car Quest, but they also deal with specialty companies.