1966 charger factory ground straps

[moparmanic]

hello all, can anybody tell me where the factory ground straps are on a 1966 charger. I have some issues with flickering lights.

[moparmanic]

I have found a ground strap on the fire wall to wire harness, at the front radiator core support. Where is the factory ground strap for the chasis?

[ODZKing]

Hmmm, can't speak for under the dash but the one I can think of at the moment on my 67 is the one from the block to firewall.
And naturally negative to block.  Is that what you are asking?

[histoy]

The engine compartment has only 3 grounds.  1. Negative battery cable to front of engine  2. Negative battery cable to radiator support  3. Rear of engine to firewall.

[moparmanic]

That's the one I need thanks, I thought it went to the wire harness. After cleaning up the engine bay I can see it at the rear of the valley pan. If my lights have a bit of a flicker with all lights on does that mean I have a bad ground? I don't see a ground strap for the chasis. Is the fire wall strap for that?

[ODZKing]

Well, my 67 has never had a ground to the radiator support. I am not sure if it is supposed to so I can't say it doesn't.
My 73 does but not the 67.
if there is another under the hood, I am not sure where it is. My old firewall strap was beat so I purchased a new one.
I would have to get on my computer but I could tell you where I got it. It is a very hecty gauge wire style where my 73 is the flat woven silver.

[ODZKing]

Oh and that would be the place to start is with the ground strap.
all lights or certain ones?