[mustang66gtaqua]

hello everyone, i have a 1966 mustang gt that is factory that was built 12/4/65 . i'm having a problem with the underdash foglamp i have spoke with veronica about my problem and she is really nice and helpful i looked on veronica,s site and it shows a foglamp underdash harness with 3/3 prong plugs and a connector that goes to the circut breaker and a feed wire with a gromment that goes in to the fire wall ............the foglamp underdash harness i need is a 1/3 prong plug 2/2 prong plugs and a connector that goes to the circut breaker and a feed wire with a gromment that goes in to the fire wall when i use the 1st harness my tail lights won,t come on when i turn on the headlights if i turn the foglamps on the tail lights work i can make the 1st harness work but i have to make a jumper wire then everything works........maybe its just me but i want things right on my car its sad to say that most of the mustang parts places didn,t even know how to help i found a harness at local mustang parts house i know this one will plug right into my car my point with all of the is the mustang industry should address this and lable the harness correctly i believe that there is a early and late harness i,m going to post some pics of the harness oh........also this harness is complete with breaker and all wiring i hope this help someone else

[MIL1ION]

As you can see I have already taken it upon myself to document the 68 Fog light system

http://forums.vintage-mustang.com/sh...search/1/tp/1/

Someone sells these underdash harnesses. Virginia Mustang Parts is that where you got yours?


MM also has a tech article

http://www.mustangmonthly.com/techar...hts/index.html

Here is the schematic for the 65-67 Fog Lamps. (see top left corner)

http://hammar.dyndns.org/~djhamma/wi...66/66exter.jpg



HTH's....................

[mustang66gtaqua]

Originally Posted by MIL1ION

As you can see I have already taken it upon myself to document the 68 Fog light system

68 fog light harness - Vintage Mustang Forums

Someone sells these underdash harnesses. Virginia Mustang Parts is that where you got yours?


MM also has a tech article

Installing Classic Ford Mustang Fog Lights - Mustang Monthly Magazine

Here is the schematic for the 65-67 Fog Lamps. (see top left corner)

http://hammar.dyndns.org/~djhamma/wi...66/66exter.jpg



HTH's....................

i purchase my foglamp kit with harness from cj pony part and i told them the foglamp kit is great but the underdash harness was wrong......do you know they would not replace the harness.........so i just don,t buy from cj pony part anymore...even scott drake couldn,t help me it seem like i was bothering them.........but that ok..........i have people like you and veronica and others on this site to help me thanks again.................allen p.s i,m going to post a photo of the correct harness for my 66 gt

[mustang66gtaqua]

Originally Posted by mustang66gtaqua

hello everyone, i have a 1966 mustang gt that is factory that was built 12/4/65 . i'm having a problem with the underdash foglamp i have spoke with veronica about my problem and she is really nice and helpful i looked on veronica,s site and it shows a foglamp underdash harness with 3/3 prong plugs and a connector that goes to the circut breaker and a feed wire with a gromment that goes in to the fire wall ............the foglamp underdash harness i need is a 1/3 prong plug 2/2 prong plugs and a connector that goes to the circut breaker and a feed wire with a gromment that goes in to the fire wall when i use the 1st harness my tail lights won,t come on when i turn on the headlights if i turn the foglamps on the tail lights work i can make the 1st harness work but i have to make a jumper wire then everything works........maybe its just me but i want things right on my car its sad to say that most of the mustang parts places didn,t even know how to help i found a harness at local mustang parts house i know this one will plug right into my car my point with all of the is the mustang industry should address this and lable the harness correctly i believe that there is a early and late harness i,m going to post some pics of the harness oh........also this harness is complete with breaker and all wiring i hope this help someone else

this is a photo i believe is the correct foglamp underdash harness for my 66 gt that was built on 12/4/1965 part #c6zz-15223-fud

[Ivy66GT]

That looks like the correct harness but I think that part number was invented by some parts salesman and not by Ford. The fog harness on my San Jose GT from July of '66 had a Ford paper tag with a number of C5ZB-151223-C. If they were using the C5 number in July I don't see why they would have had a C6 number the prior December. Since '65 and '66 wiring are different that obviously says that the A and/or B versions are likely for the '65 and the C version is for the '66.

It seems common for supposed 'part numbers' to be 'invented' by various vendors in an attempt add fake 'originality' to their parts. I read the 'fud' on that part number as meaning 'Ford, under dash' and should not be confused with an original Ford number.

[MIL1ION]

Part numbers are different than Part Identification stamping /tag numbers

Plus there are supercede numbers happening all the time

[Ivy66GT]

True. But when you go to buy an original wiring harness, unless you find an NOS one still in a box, you only have the paper tag with which to identify whatever it is. You don't care exactly all the history behind it, you want the proper harness. You will never find an original Ford tag that says 'c6zz-15223-fud'.

The 'ZZ' is supposed to imply Ford replacement part for a Mustang but usually today implies a psuedo number that Ford never made. If a vendor wanted to make a 'true' repro they would use the original number that should have been on the car from the factory. But that would imply using a lot of C5 numbers, etc., on a '66 and instead of trying to understand, or even more difficult - to explain it all, they just invent C6 numbers instead.

[MIL1ION]

Sorry I missed that part.

Yes there seems to be some creative Numbering going on

Fud short for Ford maybe ?

Ford Part Numbers

FOG LAMP SWITCH AND WIRING ASSEMBLY

65 Mustang GT C5ZZ-15A214-A
66/67 Mustang GT C6ZZ-15A214-A
68 Mustang C8ZZ-15A214-A