Mystery hole in the Wall(Firewall)!

[Vincent Holt]

1967 Coronet R/T
440/Auto
Non-A/C
Manual brakes


I cant figure out what goes through this factory hole in my firewall. I've seen a single wire with large grommet on other B-bodies at car shows. I asked the owners but they didn't have a clue where it went or what it did. They must've bought not built. Any help would help. Thanks!

 

[LowBikeMike]

Factory tach hole on a 69 B Body

 

[LowBikeMike]

But should have been on the dimple just to the right of the hole. Looks like the same person drilled mine....in the wrong place.

 

[WileE]

All in all, it's just another hole in the firewall.

 

[Vincent Holt]

All in all, it's just another hole in the firewall.

Good song.

My factory tach is mounted on the center console. The wire goes thru a factory hole on the passenger side.

 

[WileE]

Good song.
My factory tach is mounted on the center console. The wire goes thru a factory hole on the passenger side.

You don't need no education.

 

[Vincent Holt]

You don't need no education.

How can you have any pudding if you don't eat jour meeat!?

 

[AR67GTX]

Neither my 66 or 67 have that hole so I would guess it was added by a previous owner.

 

[R413]

That is not a factory hole, it has been added.

 

[gtx6970]

How can you have any pudding if you don't eat jour meeat!?

All in All , Its just a ,,,,,,,,,

 

[440 4 speed]

Neither my 66 or 67 have that hole so I would guess it was added by a previous owner.

I am going to try to post a picture of our unmolested 67 Charger that we bought in 1970. Instead I am trying send pictures from our Charger in the garage. I checked pictures of 8 of our 66-7’s. They all have that hole.
The wires go to the forward light harness, and connect to the light harness, with the whitish connector this under the battery tray.

 

[69L48Z27]

No hole there on either of my 67 R/Ts. Tach is over on the other side where the OP showed it

 

[kiwigtx]

How can you have any pudding if you don't eat jour meeat!?

All in all, it's just another hole in the firewall.

 

[AR67GTX]

Maybe something only Charger-specific then.

 

[kiwigtx]

1967 Coronet R/T
440/Auto
Non-A/C
Manual brakes


I cant figure out what goes through this factory hole in my firewall. I've seen a single wire with large grommet on other B-bodies at car shows. I asked the owners but they didn't have a clue where it went or what it did. They must've bought not built. Any help would help. Thanks! View attachment 1798131

Normally a factory hole would have been made on the dimple to the right.

What diameter is it?

 

[R413]

I am going to try to post a picture of our unmolested 67 Charger that we bought in 1970. Instead I am trying send pictures from our Charger in the garage. I checked pictures of 8 of our 66-7’s. They all have that hole.
The wires go to the forward light harness, and connect to the light harness, with the whitish connector this under the battery tray.

Your hole is higher than the hole in the blue Coronet RT. The blue car has the hole on the same level amd to the left of the dimple.

Your green Charger has it higher and to th left of the dimple.

Only the Charger uses the hole you have.

 

[roadrunnerh]

No dark sarcasm in the classroom

 

[440 4 speed]

Your hole is higher than the hole in the blue Coronet RT. The blue car has the hole on the same level amd to the left of the dimple.

Your green Charger has it higher and to th left of the dimple.

Only the Charger uses the hole you have.

View attachment 1798541

View attachment 1798542

 

[440 4 speed]

Only know what I have. Hopefully it might help someone.