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Help needed with 70 Charger 727 wiring harness? (Got it!)

Started by b5blue, January 16, 2014, 07:28:58 PM

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b5blue

 Anyone got pics or info on actual routing for neutral safety/back up light wiring for my 70 Charger? The car was originally 318 console shift but after years of swaps to stick, harness changes and drag duty for 8 years before I got it I don't even know what should be left.  I'm on the hunt to repair/replace to get back up lights and NSS all working again. The console is long gone, I have a bunch of wire that runs from the harness area by the emergency brake peddle down the rocker that ran to the console I can tell but have no clue what it did other than light the console side lights and shift position indicator.
The car had a 904 to start life off but from my search it looks like I should have a 3 pin switch and connector that would be the same for ether tranny. My NSS was disabled when I bought the car long ago, the yellow wire at the starter relay is just grounded to the mounting screw. I'm installing a Winters Sidewinder shifter so no console is going back in. It has provision for a "crank in park only" switch that I'll install and run wire for but not hook up yet. I just have no reference to what is missing and where it was or went to for a path on the car. I've got an FSM for function schematics so I can sort that out.
Evens Wiring shows 2 listings separate, one for NSS and another for back up lights? Would there be a connector to join both at the 3 prong plug at the tranny?  :shruggy:

2Luke2

Quote from: b5blue on January 16, 2014, 07:28:58 PM
Anyone got pics or info on actual routing for neutral safety/back up light wiring for my 70 Charger? The car was originally 318 console shift but after years of swaps to stick, harness changes and drag duty for 8 years before I got it I don't even know what should be left.  I'm on the hunt to repair/replace to get back up lights and NSS all working again. The console is long gone, I have a bunch of wire that runs from the harness area by the emergency brake peddle down the rocker that ran to the console I can tell but have no clue what it did other than light the console side lights and shift position indicator.
The car had a 904 to start life off but from my search it looks like I should have a 3 pin switch and connector that would be the same for ether tranny. My NSS was disabled when I bought the car long ago, the yellow wire at the starter relay is just grounded to the mounting screw. I'm installing a Winters Sidewinder shifter so no console is going back in. It has provision for a "crank in park only" switch that I'll install and run wire for but not hook up yet. I just have no reference to what is missing and where it was or went to for a path on the car. I've got an FSM for function schematics so I can sort that out.
Evens Wiring shows 2 listings separate, one for NSS and another for back up lights? Would there be a connector to join both at the 3 prong plug at the tranny?  :shruggy:

No idea, but we will be watching this thread. When we took the transmission out it had a 1 prong plug in the hole, but no wiring anywhere to be found. We have since replaced it with a three prong and bought the NSS harness, but no idea where it goes haha.

b5blue


A383Wing

70 will have a 3 prong connector at trans...the middle is for neutral safety switch, the 2 outer pins are for back up lights. Wires should run up the firewall and the center wire will go to terminal on starter relay...the 2 wires for back up lights will go through bulkhead connector...one wire will go to rear lights, the other will be key on power..my car takes it from wiper switch

fy469rtse

Yep what A383wing said, you can buy the tranny harness, has the ends to go in the plugs on bulk head, just follow your FSM for the placement in bulk head, get the three pin plug , you will get your park and neutral start points

b5blue

Super guys! This also explained why Evens has 2 listings, I'll order them today.  :2thumbs:
Thanks for the fast response!  :cheers: 

b5blue

Just spoke to Evens and only the 30.00 neutral safety harness is needed for both NSS and backup lights for automatic 69-70 Chargers.
  http://www.evanswiring.com/catalog.htm     (Scroll down past engine harness and you'll see them.)