Need another pic: hooked up battery area.

[68 P.O.S.]

Originally Posted by In The Ten Ring

Looks like that extra ground wire did come off the passenger side fender.

Is this an A/C ground??? Can’t tell from the close-up pic, but when I removed my non-functioning A/C parts, there was a small ground wire that went to the passenger side fender like this. It went from the fender to somewhere on the firewall A/C box (don’t remember where tho, been too long). Does this sound right to anyone else, or is this another case of fancy PO "upgraded" wiring?

[In The Ten Ring]

Originally Posted by 68 P.O.S.

Is this an A/C ground??? Can’t tell from the close-up pic, but when I removed my non-functioning A/C parts, there was a small ground wire that went to the passenger side fender like this. It went from the fender to somewhere on the firewall A/C box (don’t remember where tho, been too long). Does this sound right to anyone else, or is this another case of fancy PO "upgraded" wiring?

My truck is non AC (no air conditioner).

[AussieinNC]

Originally Posted by 68 P.O.S.

Is this an A/C ground??? Can’t tell from the close-up pic, but when I removed my non-functioning A/C parts, there was a small ground wire that went to the passenger side fender like this. It went from the fender to somewhere on the firewall A/C box (don’t remember where tho, been too long). Does this sound right to anyone else, or is this another case of fancy PO "upgraded" wiring?

On my 71 AC cab, there was a small ground strap that went from the metal frame of the fan motor over to the passenger side fender....in addition to the shorter ground from the fan plate to one of the mounting screws for the ac box itself.

it looked factory, that is not a crimped end...

[In The Ten Ring]

Originally Posted by AussieinNC

On my 71 AC cab, there was a small ground strap that went from the metal frame of the fan motor over to the passenger side fender....in addition to the shorter ground from the fan plate to one of the mounting screws for the ac box itself.

it looked factory, that is not a crimped end...

I have a wire on my passenger side frame that I recall attached to the passenger side inner fender. Is that the "strap" you are talking about? It was rather flat and wider than a normal wire.

[68 P.O.S.]

I also bought new cables for my 72 and I wondered about the small gauge wire coming off the negative cable as well. For what it's worth, I am the opposite of an expert on this, but my research on this forum, and only this forum, indicated to me that 71-72 only have the small gauge wire coming off the negative and it appears to attach to the core support headlight ground. Member/vendor RogerKoop sells some awesome looking repro cables (http://67-72chevytrucks.com/vboard/s...php?t=625477); the 71-72 version has the wire, while the 67-70 version does not.

With that being said, someone please correct me if I am wrong because I’d like to know the correct answer to this as well. I don’t want to add to any of the confusion and misinformation that’s already out there.


Paul



R.I.P. Tom Petty

[In The Ten Ring]

Originally Posted by 68 P.O.S.

I also bought new cables for my 72 and I wondered about the small gauge wire coming off the negative cable as well. For what it's worth, I am the opposite of an expert on this, but my research on this forum, and only this forum, indicated to me that 71-72 only have the small gauge wire coming off the negative and it appears to attach to the core support headlight ground. Member/vendor RogerKoop sells some awesome looking repro cables (http://67-72chevytrucks.com/vboard/s...php?t=625477); the 71-72 version has the wire, while the 67-70 version does not.

With that being said, someone please correct me if I am wrong because I’d like to know the correct answer to this as well. I don’t want to add to any of the confusion and misinformation that’s already out there.


Paul



R.I.P. Tom Petty

I have that ground (to core support) and this one! My truck is a 1972 as well. (See pic links at Reply #16 of thread).

I think the grounds that go to the core support are for the turn signals or perhaps the side marker lights. This one is factory as far as I can tell. I asked the original owner (my dad) about it and he said "backup."

I'm going to put it on the new fender as it was in the pic above but like Paul here, I want more info.

[AussieinNC]

It is my understanding that 67-70 ground battery leads do not use the integral additional ground lead. The 67-70 use a collection of ground straps between the Main ground on the engine, small ground straps between the engine and cab and engine and chassis and chassis and passenger side inner fender panel.

The radiator support (and headlamps etc) obtained its ground path via the radiator support bolted to the fender which was bolted to the inner fender...

71 and 72 improved the ground circuit design with the addition of the integral smaller ground wire that directly terminated on the radiator support.

I know on my 67 Long box, as I dismantle the front clip, there is lots of wild and woolly additional wiring been added, and yet, disconnected original ground straps, including the small one at rear of the engine, jammed under the rocker cover!...Now I know where the oil leak was coming from...

[In The Ten Ring]

OK, sorry no pics today.

Removed battery cables, ordered new battery clamps, cleaned off paint from the ground point behind battery tray, priced new battery cables.

Slowly, slowly.....