ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1968 Shelby => Topic started by: ruppstang on October 06, 2013, 10:31:23 AM

Title: 68 GT350 wiring
Post by: ruppstang on October 06, 2013, 10:31:23 AM

I am working on a 68 GT350 Fastback built 12-02-67. I was working on the under dash wiring when I noticed that it had the wiring for the rear window defogger. This option is not listed on the Marti report and appears to never to have been installed in the car. I have never seen this in the Mustangs I have done. Was this a mistake or something done with the Shelby's?

Title: Re: 68 GT350 wiring
Post by: midlife on October 06, 2013, 09:35:44 PM

The first 68 Shelby underdash harness that I refurbished also had a rear defogger subharness.  My notes state that power was obtained from the fuse box  - 3 prong ACC connector.  Is your harness integral to the main harness or an accessory harness?

Title: Re: 68 GT350 wiring
Post by: ruppstang on October 06, 2013, 10:39:19 PM

It is integral with the main harness.

Title: Re: 68 GT350 wiring
Post by: midlife on October 07, 2013, 08:37:47 AM

Very interesting.  I've seen several 68 rear defoggers, some separate and some integral.  I suspect it was a mid-year running change.

Title: Re: 68 GT350 wiring
Post by: 67gta289 on October 07, 2013, 01:31:32 PM

For educational purposes, was the rear defogger available on fastbacks and/or convertibles?  I was assuming that they were a "coupe only" option based on (1) only seeing them on coupes, and (2) considering the lack of space to mount them on the other body styles.

Title: Re: 68 GT350 wiring
Post by: ruppstang on October 07, 2013, 02:00:19 PM

The rear window defogger was only available on coupes and fastbacks. I have only seen one fastback with the option, it required a special fiberglass panel above the trap door. It was fairly common on coupes.

Title: Re: 68 GT350 wiring
Post by: 67gta289 on October 07, 2013, 06:54:48 PM

Thanks Marty

Title: Re: 68 GT350 wiring
Post by: TLea on October 10, 2013, 08:45:20 AM

Marty, the triangle defroster plug was integral to the main harness on all 68 Shelbys although they were never installed. It just part of the tach convienience group underdash harness

Title: Re: 68 GT350 wiring
Post by: ruppstang on October 13, 2013, 09:13:32 AM

Thanks Tim I wondered if that might be the case.
Marty