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Early 70 E body has different body/Light ground strap? #379837
07/19/09 10:51 AM 07/19/09 10:51 AM
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cataclysm80 Offline OP
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When I got my 70 Challenger the AC line clip that is just forward of the fender tag had been replaced with a body ground wire from the aftermarket negative battery cable.

1. What is the correct location for the body ground? (I'm thinking it should have a strap from the small block engine to the firewall somewhere?)

2. What is the correct fastener for that AC line clip? What size should the hole be? I want to make sure the hole hasn't been drilled out to the wrong size before I paint the car.

Thank you!
Tav
Re: 70 E body AC clip by fender tag / body ground strap? [Re: cataclysm80] #379838
07/19/09 12:42 PM 07/19/09 12:42 PM
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So Cal
autoxcuda Offline
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Original paint 70 440-4 A/C auto Challenger R/T one owner. Los Angeles plant built car.

-Notice the E5 grease pencil marking. This car is FE5 red. Neat.
Re: 70 E body AC clip by fender tag / body ground strap? [Re: autoxcuda] #379839
07/19/09 02:11 PM 07/19/09 02:11 PM
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E bodies don't use a strap like the earlier year cars, instead the main battery to engine ground cable has a body ground built in, it runs over to the same bolt the headlight ground attaches to on the radiator yoke, just ahead of the battery...
Re: 70 E body AC clip by fender tag / body ground strap? [Re: 1_WILD_RT] #379840
07/20/09 01:26 PM 07/20/09 01:26 PM
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Central Coast, Calif.
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Snoopy Offline
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Re: 70 E body AC clip by fender tag / body ground strap? [Re: cataclysm80] #379841
07/20/09 02:19 PM 07/20/09 02:19 PM
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Ontario, Canada
FJ5_Fish Offline
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I have a one owner Chall with A/C - I think mine may have a hex head screw by the tag but I am going from memory - I do remember the clip because that routing makes it hard to read the tag. I'll check the location/fastener.
Re: 70 E body AC clip by fender tag / body ground strap? [Re: FJ5_Fish] #379842
07/20/09 03:39 PM 07/20/09 03:39 PM
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cataclysm80 Offline OP
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I have seen another car that used a hex head there, but wasn't sure if it was correct.

Currently the hole in my car by the fender tag is 15/64, which is quite a bit bigger than the 5/32 holes the other clips on the radiator support use.

I'm trying to figure out if I need to weld the hole up and re-drill it smaller before painting the car.

Thanks!
Tav
Re: 70 E body AC clip by fender tag / body ground strap? [Re: cataclysm80] #379843
07/20/09 03:50 PM 07/20/09 03:50 PM
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cataclysm80 Offline OP
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Here is a pic of the car I saw. It's a 1972 Rallye that won participants choice best of show at Don Garlits a few year ago. I was really surprised by the win. I thought Daniel Bankers green Hemi Challenger was the nicest car there.

Tav

5364483-B.jpg (337 downloads)
Re: 70 E body AC clip by fender tag / body ground strap? [Re: cataclysm80] #379844
07/20/09 05:08 PM 07/20/09 05:08 PM
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SE Wisconsin, USA
RP's R/T's Offline
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When asking about the ground wire, were you asking about the fan motor ground? That ground goes to the bottom stud/nut for the wiper motor.
Re: 70 E body AC clip by fender tag / body ground strap? [Re: RP's R/T's] #379845
07/20/09 05:57 PM 07/20/09 05:57 PM
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cataclysm80 Offline OP
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No, I was talking about the negative battery cable to body ground that's in Snoopy's picture above.

Thanks for the info on the blower motor though. I always thought that ground wire was Way longer than it needed to be. Now I know why.

Tav
Re: 70 E body AC clip by fender tag / body ground strap? [Re: FJ5_Fish] #379846
07/20/09 06:14 PM 07/20/09 06:14 PM
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Ontario, Canada
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Quote:

I have a one owner Chall with A/C - I think mine may have a hex head screw by the tag but I am going from memory - I do remember the clip because that routing makes it hard to read the tag. I'll check the location/fastener.



Nope - My memory sucks - Phillips screw.
Re: 70 E body AC clip by fender tag / body ground strap? [Re: FJ5_Fish] #379847
07/20/09 07:15 PM 07/20/09 07:15 PM
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So Cal
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Quote:

Quote:

I have a one owner Chall with A/C - I think mine may have a hex head screw by the tag but I am going from memory - I do remember the clip because that routing makes it hard to read the tag. I'll check the location/fastener.



Nope - My memory sucks - Phillips screw.



Like in the pictures I posted above. That's original.

I have seen other originals like that. Fat headed phillips pan head.
Re: 70 E body AC clip by fender tag / body ground strap? [Re: autoxcuda] #379848
07/20/09 07:33 PM 07/20/09 07:33 PM
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Ontario, Canada
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Yup - Just like your FE5 pics

Re: 70 E body AC clip by fender tag / body ground strap? [Re: FJ5_Fish] #379849
07/20/09 07:37 PM 07/20/09 07:37 PM
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cataclysm80 Offline OP
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darn, looks like I'll have to weld it up and re-drill it.

Thanks for the help guys!

Tav
Re: 70 E body AC clip by fender tag / body ground strap? [Re: Snoopy] #379850
08/21/09 01:05 PM 08/21/09 01:05 PM
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cataclysm80 Offline OP
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Hey Snoopy, any idea what year / SPD that car in your picture is?

My 8-26-69 SPD Challenger doesn't have a threaded insert there for the ground.

My June of 1970 Cuda does have a threaded insert there.

Are the early cars different? Where do they ground?

Thanks!
Tav
Re: 70 E body AC clip by fender tag / body ground strap? [Re: FJ5_Fish] #379851
08/21/09 06:35 PM 08/21/09 06:35 PM
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Quote:

Quote:

I have a one owner Chall with A/C - I think mine may have a hex head screw by the tag but I am going from memory - I do remember the clip because that routing makes it hard to read the tag. I'll check the location/fastener.



Nope - My memory sucks - Phillips screw.



#10x 1/2" pan head clear zinc phillips screw
Re: 70 E body AC clip by fender tag / body ground strap? [Re: gtx6970] #379852
08/21/09 09:24 PM 08/21/09 09:24 PM
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cataclysm80 Offline OP
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Thanks Bill, now I know what size to make the hole.

Tav
Re: 70 E body AC clip by fender tag / body ground strap? [Re: cataclysm80] #379853
08/22/09 01:44 PM 08/22/09 01:44 PM
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Snoopy Offline
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Quote:

Hey Snoopy, any idea what year / SPD that car in your picture is?
Are the early cars different? Where do they ground?

Thanks!
Tav



I don't know the SPD, but I have a picture of an Oct 69 Cuda with the weld-in nut.
Re: Early 70 E body has different body/Light ground strap? [Re: cataclysm80] #379854
08/22/09 02:42 PM 08/22/09 02:42 PM
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cataclysm80 Offline OP
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Thanks Snoopy, that helps narrow it down considerably.

Anyone out there have an early build car like mine? How does your ground hook up?

Tav
Re: Early 70 E body has different body/Light ground strap? [Re: cataclysm80] #379855
08/22/09 05:20 PM 08/22/09 05:20 PM
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Tav, I'm guessing you have a square hole in that location? I've seen a few cars where the weld nut wasn't securely welded & it popped out at some point... If that square hole is there & I suspect it is...You can eiter weld in a nut or cheat & install a cage nut...



http://www.mcmaster.com/#cage-nuts/=3axlc7
Re: Early 70 E body has different body/Light ground strap? [Re: 1_WILD_RT] #379856
08/23/09 02:44 AM 08/23/09 02:44 AM
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cataclysm80 Offline OP
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Good suggestion Randy, I've seen those weld in nuts fall out before also. In fact, this car was missing at least four of them that I can think of and I knocked them off other cars at a junk yard and welded them back in place on my car. Not as nice of weld as factory, but they sure won't fall off again.

However, in this instance I don't have a square hole. No indication on either side of the metal that anything was ever there.

Tav

5434760-DSC01915.JPG (240 downloads)
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