Neutral Safety switch purple wires

[CaptHutch66]

Alright brain e ac's. If my old 66 GMC didn't have a neutral safety wiring (3 on the tree converted to auto trans shift)(can't find neutral safety just the back up light's (two grns)), how would I wire up the two purples so as to get the neutral safety working. Thanks, Hutch

[Clyde65]

I am a little confused here, you have the green backup wires connected? you want to know where the purple wires come from? where they connect?

[CaptHutch66]

I've installed a 70's van column in the 66. I have the 2 grn wires for the backup's but nothing for the purple wires for the neutral safety hookup. I'm trying to figure out how to tie in/hook up the purple neutral safety wires. Hope that makes sense, H

[Clyde65]

the purple wires come from the ign switch to the NS switch, should be on the left on the NS switch if memory server, one one one term the other on the remaining terminal, then on to the starter.

[CaptHutch66]

Thanks Clyde. I'll take a look at these "little bitty" wiring diagrams and see if I can follow it. Need larger print/pictures for these eyes!

[Clyde65]

I have looked and so far havent found anything thing that is worthy of helping you. I had a challenge myself when I switched my column out too, but this was a while ago. sometimes the PITA things stick in your mind though. Good luck, if I find something I will post and PM you.


found 1 picture, look familiar?

[CaptHutch66]

In theory, if I cut/splice into the purple wire from the ignition run it in 1 side of the NSS and out the other side it should operate? I would like to add a kill switch under the dash as well. Thanks for the head scratchin, H

[CaptHutch66]

Yep! Read that post In trying to figure everything out prior. I have the van NSS, 2 flat prongs at the column are the backup, I just dont have the wires from the ignition to go to the other 2 prongs!

[Clyde65]

Cut the purple wire and add blade connectors to both ends then plug into the NSS on the left connections or the ones that are left.

FYI, when I removed my column from the donor truck ( 2nd time) I just cut the wires at the NSS leaving a small portion of the wire on it. I guess you could say I learned my lesson the 1st time.

Good luck!

[CaptHutch66]

10-4. Yeah I just couldn't figure out where I needed to originate the purple wires from due to not having them orig on the 66. Think I got it figured out with your help though. I just went and looked and found the purple wire at the ignition, I'll fish it out and splice into it and route it to the NSS. Thanks again Clyde for the help and insight! H

[Clyde65]

Glad to help anytime, I have really enjoyed this site, along with 67-72chevytrucks.com the assistance you get here and there are most helpfull, everyone is willing to help and advise, some have even met up and worked on someones trucks, real cool of them.

[Clyde65]

Glad to help anytime, I have really enjoyed this site, the assistance you get here and there are most helpful, everyone is willing to help and advise, some have even met up and worked on someones trucks, real cool of them.

[CaptHutch66]

I'd have to agree with you on that. Woulda been stuck several times without the help! Take care, H