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11/09/2018 5:35 PM  #1


Wiring routing question for neutral safety switch

I've been working on gathering all the material I need so I can rewire my 1965 289 v8c4 coupe mustang. I'm curious how the neutral saftey switch wiring runs. I have the old wring I realize it plugs into the reverse lights via black red  and the red blue hook up to the switch on the the trans. My question is do I only hook up the one Male black red wire then leave the female black red cconnector as well as the red blue connectors that also come in from the firewall?

Last edited by True74yamaha (11/09/2018 8:36 PM)

 

11/10/2018 8:07 AM  #2


Re: Wiring routing question for neutral safety switch

Below is the wiring diagram for 64-65 Mustangs.  The black-red wire to the Neutral Switch is fed directly from the fuse block and is hot all the time.  There shouldn't be any red-blue wire in this circuit.  Also, this circuit does not go through the firewall bulkhead connectors.  I believe these wires go under the rug to the floor opening for the shifter, and then to the 2-prong connector to the transmission.


65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
 

11/10/2018 7:00 PM  #3


Re: Wiring routing question for neutral safety switch

Two  Black-Red back-up light wires from the cabin to the PRNDL switch at the trans selector shaft.  One of these from the fuse panel and one from the rear harness (back up lights) near the left kick panel. 
Two Red-Blue start circuit wires from the male-female bullet connector under the dash to the PRNDL switch at the trans.  One of these wires is from the Ignition Switch and the other goes through the firewall connector to the "S" lug on the starter solenoid.  If you had a manual trans, these two wires would just plug together under the dash but with the C4 they both run to the trans and get connected together by the PRNDL  switch.
You may need to check the PRNDL switch with an OHM meter to determine which pins are closed when the trans is in reverse and which are closed in neutral or park.
I honestly can't recall exactly how the four wires got from the dash to the side of the trans but I seem to think that they didn't go through the shifter hole.  Of course, if you are doing a custom harness you can get them there any way you want.

BB
 


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

11/10/2018 7:13 PM  #4


Re: Wiring routing question for neutral safety switch


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

11/11/2018 9:34 AM  #5


Re: Wiring routing question for neutral safety switch

Awesome guys much appreciated. One other thing I thought I'd get y'alls opinion on. I do realize that stock position would be ideal for the new fuse block. I have a center console and factory A/C. I have no room to mount the new block on the drivers side and have it out of the way and clean. I am planning on mounting the block in the glove box. I do realize the heater is near that area.  I am using high temp wire and and high temp loom covering. Do you guys see any problem with mounting the box on the passenger side?

     Thread Starter
 

11/11/2018 11:33 AM  #6


Re: Wiring routing question for neutral safety switch

In our 66 Mustang and the Falcon project I built accessory fuse panels using four-gang, snap together fuse blocks and mounted them under the glove box.  There's just enough room to mount the panel on a sheet metal tab that bolts to the bottom edge of the dash.  It will clear the heater and can't be seen unless you lay in the foot well and look up.  There are probably more visible locations but this seem to work pretty well.

BB

Last edited by Bullet Bob (11/11/2018 11:33 AM)


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

11/11/2018 1:26 PM  #7


Re: Wiring routing question for neutral safety switch

Bullet Bob wrote:

In our 66 Mustang and the Falcon project I built accessory fuse panels using four-gang, snap together fuse blocks and mounted them under the glove box.  There's just enough room to mount the panel on a sheet metal tab that bolts to the bottom edge of the dash.  It will clear the heater and can't be seen unless you lay in the foot well and look up.  There are probably more visible locations but this seem to work pretty well.

BB

 
Great minds think alike that is the basis of what I was planning on building.

     Thread Starter
 

11/11/2018 1:30 PM  #8


Re: Wiring routing question for neutral safety switch

Try Terminal Supply for all your needs.   Good source except for wire, for that I go to Allied Cable.

BB


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

11/11/2018 1:44 PM  #9


Re: Wiring routing question for neutral safety switch

I'll have to check out your two sources.  I also have gone through
https://www.sherco-auto.com they have every color striped tracer wire color available.

     Thread Starter
 

11/11/2018 2:27 PM  #10


Re: Wiring routing question for neutral safety switch

Tracered wire?  Great, I'll have to check THEM out.  Thanks.

BB


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

11/11/2018 2:42 PM  #11


Re: Wiring routing question for neutral safety switch

Holy moly...you weren't kidding.  Wish I had found them earlier.  Thanks again.  I didn't check the specs, is that good GXL insulated wire that will handle some temp?

BB


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

11/11/2018 6:53 PM  #12


Re: Wiring routing question for neutral safety switch

Seems like great quality wire for the money. 
I don't see the heat specs. For the wire.
Striped Tracer Wire

Sherco Auto & Marine Supply's Striped Marine Tracer Primary Wire is constructed from Type III Class K tinned copper. It is then jacketed with a durable, flexible, high quality PVC insulation. This wire meets the requirements and standards of UL, ABYC and NMMA. .


Stranded, Tinned copper conductorsHighly flexible color coded insulationAnnealed Finely Stranded Tinned Copper ASTM b172 Class KResistant to: Acid, Alkali, Abrasion, Flame, Gasoline, Oil, Moisture

Another source I found was.
http://www.racersrods.com/category-s/1821.htm
https://4rcustomswire.com
http://www.madelectrical.com/electrical-tech.shtml
http://www.how-to-build-hotrods.com/fuse-panel.html

Last edited by True74yamaha (11/11/2018 7:04 PM)

     Thread Starter
 

11/12/2018 8:42 AM  #13


Re: Wiring routing question for neutral safety switch

True74yamaha wrote:

Seems like great quality wire for the money.
I don't see the heat specs. For the wire.
Striped Tracer Wire

Sherco Auto & Marine Supply's Striped Marine Tracer Primary Wire is constructed from Type III Class K tinned copper. It is then jacketed with a durable, flexible, high quality PVC insulation. This wire meets the requirements and standards of UL, ABYC and NMMA. .


Stranded, Tinned copper conductorsHighly flexible color coded insulationAnnealed Finely Stranded Tinned Copper ASTM b172 Class KResistant to: Acid, Alkali, Abrasion, Flame, Gasoline, Oil, Moisture

Another source I found was.
http://www.racersrods.com/category-s/1821.htm
https://4rcustomswire.com
http://www.madelectrical.com/electrical-tech.shtml
http://www.how-to-build-hotrods.com/fuse-panel.html

I've used Sherco for several years (wire, fuse blocks, heat shrink, hardware items, etc) and have been pleased with the products they sell.
You may want to look at "Blue Sea" and "Cooper-Bussman" products for fuse blocks.  Blue Sea is more boating related but they make nice compact fuse blocks.

Last edited by BobE (11/12/2018 8:55 AM)


65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
 

11/13/2018 10:05 PM  #14


Re: Wiring routing question for neutral safety switch

BobE wrote:

True74yamaha wrote:

Seems like great quality wire for the money.
I don't see the heat specs. For the wire.
Striped Tracer Wire

Sherco Auto & Marine Supply's Striped Marine Tracer Primary Wire is constructed from Type III Class K tinned copper. It is then jacketed with a durable, flexible, high quality PVC insulation. This wire meets the requirements and standards of UL, ABYC and NMMA. .


Stranded, Tinned copper conductorsHighly flexible color coded insulationAnnealed Finely Stranded Tinned Copper ASTM b172 Class KResistant to: Acid, Alkali, Abrasion, Flame, Gasoline, Oil, Moisture

Another source I found was.
http://www.racersrods.com/category-s/1821.htm
https://4rcustomswire.com
http://www.madelectrical.com/electrical-tech.shtml
http://www.how-to-build-hotrods.com/fuse-panel.html

I've used Sherco for several years (wire, fuse blocks, heat shrink, hardware items, etc) and have been pleased with the products they sell.
You may want to look at "Blue Sea" and "Cooper-Bussman" products for fuse blocks.  Blue Sea is more boating related but they make nice compact fuse blocks.

That's awesome great to know!

     Thread Starter
 

Board footera


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