Report reply Draker 16,616 Posted November 5, 2025 Not sure if 78/79 are the same. But I have a 78 loose and ready to go. Share this comment Link to comment
Report reply datzenmike 54,104 Posted November 7, 2025 The '78 and '79 turn signal switches are different, primarily in the dimmer switch. The '79 has a flash to pass function where high beams can be used as a signal to vehicles ahead of you without having to turn the headlights on first. Looks like there is an extra two wire plug on the '79 switch but a '78 should work in a '79 truck but the flash to pass won't. lil Hustler 620 0 Posted November 8, 2025 Yes mine has the 2 plugs. Not really sure how to add photos from my phone Share this comment Link to comment
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