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Re: 70 B body tach hole [Re: 70gtx440dana] #599046
05/12/10 05:59 PM
05/12/10 05:59 PM
Joined: Nov 2003
Posts: 6,519
Buffalo, NY U.S.A.
MrNormsTA Offline
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When adding a tach on a non tach car, I would always drill a small hole in one of the extra spots on one of the bulk head connectors and pass a wire thru.

I really didn't care about the hole, but figured some purist might not like it down the road, so why do it.

Re: 70 B body tach hole [Re: DPelletier] #599047
05/12/10 06:17 PM
05/12/10 06:17 PM
Joined: Nov 2009
Posts: 579
Ft.Myers,Florida
Hemiruss Offline
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Dave the problem is your car is metric and is in the other side,It's a Canadian Thind..........lol lol lol...I thought you'd get a kick out of it from our past post exchanges......lolololololllool


Russ....it's the big one in the middle....

5978897-100_1474.JPG (326 downloads)
Last edited by Hemiruss; 05/12/10 06:17 PM.
Re: 70 B body tach hole [Re: MrNormsTA] #599048
05/12/10 06:27 PM
05/12/10 06:27 PM
Joined: Oct 2006
Posts: 3,054
USA
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b54406barrel Offline
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Quote:

I really didn't care about the hole, but figured some purist might not like it down the road, so why do it.




Years ago I had a wrecked 69 Charger dash & put the tach/clock in my 6bbl rr as it didn't have either. Once I found out how crappy (this was in the 70's) it was & hard to read, I took it out. Glad I didn't drill that hole!

Re: 70 B body tach hole [Re: 70gtx440dana] #599049
05/12/10 09:11 PM
05/12/10 09:11 PM
Joined: Dec 2009
Posts: 108
Ohio
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70BIRD Offline
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Ohio
Quote:

These wires are for 70 Charger only. They run the headlight motor to open the doors. You will not need them on a RR. New harness must be generic. I would tape up the connector and even possibly tape this entire pigtail to your harness under dash.




I got the harness from Year One a few months ago and it was listed for 1970 Dodge and Plymouth models with oil gauge and I think it was made by M & H. In any event I'll tape up the connector and move on.

Thanks for the response.

Re: 70 B body tach hole [Re: sixbbl69] #599050
05/13/10 12:41 AM
05/13/10 12:41 AM
Joined: Apr 2003
Posts: 380
Mesa, Az
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GETX Offline
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Quote:

tach hole diameter 13/16"








Re: 70 B body tach hole [Re: 6bblgt] #599051
05/13/10 09:32 PM
05/13/10 09:32 PM
Joined: Apr 2003
Posts: 470
old New Jersey
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papajohn Offline
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Quote:

Here's my February '70 LA built GTX - original tach hole.



Same as my Feb. '70 LA built Road Runner!

5981372-70FJ6Tachhole.JPG (308 downloads)
Re: 70 B body tach hole [Re: papajohn] #599052
07/06/11 08:06 PM
07/06/11 08:06 PM
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Posts: 8,828
Houston, Tx
hemi68charger Offline
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Houston, Tx
I believe the tach grommet was feed through the hole punch above the bulkhead connector when the car was equipped with cruise control. I believe the grommet for the cruise utilized the "normal" tach positon.

As you can see on this '69 Charger R/T equipped with cruise, you can vaguely make out the single-lead tach wire harness out of the top position.


Troy
Houston Mopar Connection Club
'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi)
'69 Charger 500 440 - 4speed - 3.54 Dana
'70 Road Runner 383 - 4speed - a/c (now with 440)
Re: 70 B body tach hole [Re: hemi68charger] #599053
07/06/11 08:14 PM
07/06/11 08:14 PM
Joined: Aug 2003
Posts: 8,828
Houston, Tx
hemi68charger Offline
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Also, as was mentioned, '70 Charger headlamp harness would have been passed through the upper hole. The tach wire harness would have come out just like the B-bodies of '68-'69, the driver's side of the bulkhead connector..
Here's a picture of the firewall of my former '70 six pack Charger R/T without the tach option. The headlamp harness grommet came out above the bulkhead connector..

6717135-100_9452.JPG (226 downloads)
Last edited by hemi68charger; 07/06/11 08:14 PM.

Troy
Houston Mopar Connection Club
'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi)
'69 Charger 500 440 - 4speed - 3.54 Dana
'70 Road Runner 383 - 4speed - a/c (now with 440)
Re: 70 B body tach hole [Re: hemi68charger] #599054
07/06/11 08:15 PM
07/06/11 08:15 PM
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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DPelletier Offline OP
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Could be; I thought it might be a Charger thing.....

In any case I'm 99% sure that a non-cruise Superbee should have it in the lower spot across from the wiring block.

Dave


1970 Super Bee 440 Six Pack 1974 'Cuda 2008 Ram 3500 Diesel 2006 Ram 3500 Diesel 2004.5 Ram 2500 Diesel 2003 Ram 3500 Diesel 2006 Durango Limited [url] http://1970superbee.piczo.com [/url]
Re: 70 B body tach hole [Re: DPelletier] #599055
07/06/11 08:41 PM
07/06/11 08:41 PM
Joined: Aug 2003
Posts: 8,828
Houston, Tx
hemi68charger Offline
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Houston, Tx
Quote:

Could be; I thought it might be a Charger thing.....

In any case I'm 99% sure that a non-cruise Superbee should have it in the lower spot across from the wiring block.

Dave




Dave,
If you're referring to the position between the bulkhead connector and the booster/master-cylinder like in papajohn's picture above, you are correct.......

Troy

Last edited by hemi68charger; 07/06/11 08:42 PM.

Troy
Houston Mopar Connection Club
'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi)
'69 Charger 500 440 - 4speed - 3.54 Dana
'70 Road Runner 383 - 4speed - a/c (now with 440)
Re: 70 B body tach hole [Re: 70gtx440dana] #1817673
05/03/15 01:35 PM
05/03/15 01:35 PM
Joined: Feb 2003
Posts: 16,149
Mesa, Arizona
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dart4forte Offline
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Originally Posted By 70gtx440dana
Here is a picture....not sure on the size!


That's about where my tach wire comes out on my GTS


“So if it’s on the internet it must be true”

Abe Lincoln
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