Turn signal switch plug question (1966 C20) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Mathew21** · 10-03-2015, 05:31 PM

I have a 1966 C20 with a Th400 column. I ordered a turn signal switch replacement but when it came it has a curved plug. My plug is flat. After checking five different vendors sites they all of them show the curved plug. I'm not sure if mine has been switched at one time or another or?

Mine is the top photo. The plug I received is the bottom one.

**Jurassic-1** · 10-03-2015, 08:14 PM

Usually later model (73) and up used a flat plug. Most replacements for early trucks would give you a curved adapter that fit on the straight connector. I have not seen a straight connector on an early turn signal switch.

factorystock · 10-04-2015, 01:33 PM

The top photo is not original to the truck, somebody did some rewiring work. The bottom is the original correct multi-plug.

**Mathew21** · 10-04-2015, 04:04 PM

Quote:

Originally Posted by factorystock

The top photo is not original to the truck, somebody did some rewiring work. The bottom is the original correct multi-plug.

I was kind of thinking that's what happened. The previous owner did replace the wire harness.

Thanks

10-03-2015, 05:31 PM	#1
Mathew21 Senior Member Join Date: May 2010 Location: Clinton township, MI Posts: 1,192	Turn signal switch plug question (1966 C20) I have a 1966 C20 with a Th400 column. I ordered a turn signal switch replacement but when it came it has a curved plug. My plug is flat. After checking five different vendors sites they all of them show the curved plug. I'm not sure if mine has been switched at one time or another or? Mine is the top photo. The plug I received is the bottom one. __________________ It only has original paint once

10-03-2015, 08:14 PM	#2
Jurassic-1 Registered User Join Date: Jul 2007 Location: New River Arizona Posts: 1,180	Re: Turn signal switch plug question (1966 C20) Usually later model (73) and up used a flat plug. Most replacements for early trucks would give you a curved adapter that fit on the straight connector. I have not seen a straight connector on an early turn signal switch.

10-04-2015, 01:33 PM	#3
factorystock Registered User Join Date: Feb 2007 Location: west coast Posts: 3,363	Re: Turn signal switch plug question (1966 C20) The top photo is not original to the truck, somebody did some rewiring work. The bottom is the original correct multi-plug.



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