Positive ground or Negative ground on 1st Gens.

[ZuluBravoTango]

Hey guys... do we have positive ground or negative ground...
Installing a CB, and need to know. Also... Where have you guys installed your CB's in your Expys?

 

[dougmcp]

All Expys are negative ground.

 

[panda24619]

things in the pic have changed a bit. but the cb is still mounted there.

 

[ZuluBravoTango]

Nice thanks! I'm thinking under the dash

 

[ZuluBravoTango]

Ther paperwork that came with the CB suggested that most modern vehicles ran positive ground... Just wondered...

 

[walnuts4x4]

 

[Alan in AZ]

Ther paperwork that came with the CB suggested that most modern vehicles ran positive ground... Just wondered...

Well thats bizarre! I though positive ground vehicles pretty much went out with the arc...

Alan

 

[dougmcp]

Ther paperwork that came with the CB suggested that most modern vehicles ran positive ground... Just wondered...

Must be an awfully old CB, I haven't seen a car/truck with positive ground since the 1940's/1950's. LOL

 

[panda24619]

thats what i thought as well. they arent safe. one wrong step and you get ZAPPED! haha

 

[alaskanexpy]

some dodge/chryslers from 90s/00s did run positive grounds.

 

[dougmcp]

some dodge/chryslers from 90s/00s did run positive grounds.

I'm not sure if that is completely accurate, if you could be more specific, I learn something new every day.
I am under the impression that when Chrysler/Dodge/Plymouth changed from 6v to 12v in the early 1950's they went to a negative ground electrical system.

 

[alaskanexpy]

i know we run into this when we install Boss plows on mid 90s up to '02 ram 2500s at work. they have some wacky stuff with positives and grounds. a number of things have to be wired backwards in order for it to work. i would have to look through our TSBs and service manual to find out the exact differences as i have not put one on a old dodge in the last few months.

 

[ZuluBravoTango]

Wow thanks guys. I have opted for a newer unit! Nice placement Walnuts. I am going to copy your firestik mount! Is that the door jam mount from them?

 

[walnuts4x4]

yes it is a universal door jam mount from firestik