tach wiring - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**michael bustamante** · 01-29-2015, 03:22 PM

SO i just purchased a factory tach cluster from a 67 for my 67

but i need the wiring harness. I bet i could make one but i thought id hit you guys up first to see if any of you have made any and want to share your knowledge.
with out a search feature i cant search and im sure someone has asked how to make a tach harness before.
also is there a difference in the 67 tach and all the other years?

**FirstOwner69** · 01-29-2015, 07:48 PM

I bought mine on eBay about 3 years ago from Roger Koop. He is now a board member as RogerKoop. You might want to PM him to see if he still sells them. Otherwise, Classic Industries sells them.
Their numbers:
67 w/o HEI- CT20645
67 HEI- CT39694
68-72 w/o HEI- CT20635
68-72 HEI- CT39695

Not sure what the difference is with the 67s, but I think the early years routed the wire through the grommet with the washer hoses or oil line and the later years used a dedicated hole near the fuse block with a grommet molded onto the harness.

Wizo · 01-29-2015, 09:29 PM

TBONE 1964 might be able hook you up. shoot him a PM.

**hooverfish** · 01-29-2015, 09:51 PM

Quote:

Originally Posted by michael bustamante

SO i just purchased a factory tach cluster from a 67 for my 67

but i need the wiring harness. I bet i could make one but i thought id hit you guys up first to see if any of you have made any and want to share your knowledge.
with out a search feature i cant search and im sure someone has asked how to make a tach harness before.
also is there a difference in the 67 tach and all the other years?

when did the search option disappear?
Much of this site is useless without that.

SS Tim · 01-29-2015, 11:46 PM

The google site search works fine for most things.

http://www.google.com/custom?domains...D%3A1%3B&hl=en

swamp rat · 01-30-2015, 12:16 AM

Yes, i found that adding "67-72 chevytrucks" to my searches on Google is actually more powerful than the site search function, it pulls up related threads.

**davischevy** · 01-30-2015, 12:29 AM

I bought one from; TBONE1964

http://67-72chevytrucks.com/vboard/member.php?u=119465

**TBONE1964** · 01-30-2015, 02:32 AM

Yes, I have not been able to go to the location to search my listed threads for some reason as well. it says something like "search disabled". I have just recently noticed this. i like to go to that page to up date all of my threads because it is an easy way to find them.

With that said, the 67 is a 67 only tach harness. I can build one if I had a sample to follow. I think the key difference is the way it routes. It does not follow the harness under the dash and come out of the firewall to the drivers side of the junction block like the 68-72 tach harnesses do.

If there was enough interest in a 67 only tach harness, I would buy one to model from and make them like I make my 68-72's.

Hope this helps,

Take care,
Tom

**VetteVet** · 01-30-2015, 08:34 AM

Quote:

Originally Posted by TBONE1964

Yes, I have not been able to go to the location to search my listed threads for some reason as well. it says something like "search disabled". I have just recently noticed this. i like to go to that page to up date all of my threads because it is an easy way to find them.

With that said, the 67 is a 67 only tach harness. I can build one if I had a sample to follow. I think the key difference is the way it routes. It does not follow the harness under the dash and come out of the firewall to the drivers side of the junction block like the 68-72 tach harnesses do.

If there was enough interest in a 67 only tach harness, I would buy one to model from and make them like I make my 68-72's.

Hope this helps,

Take care,
Tom

Tom you can find your threads by typing " TBone1964 " without the quotes in
the rectangular box by your private messages and check the dot by 67 to 72 trucks, then click Google. VV

**TBONE1964** · 01-30-2015, 11:41 AM

Quote:

Originally Posted by VetteVet

Tom you can find your threads by typing " TBone1964 " without the quotes in
the rectangular box by your private messages and check the dot by 67 to 72 trucks, then click Google. VV

Grasshopper thanks you Master Po

**jocko** · 01-30-2015, 12:04 PM

consider the pebbles snatched from the hand and the length of the rice paper walked.. go forth and make tach harness, young kwai chaing tbone.

Andy4639 · 01-30-2015, 12:30 PM

I type my user name in the box up top of the page and selct 67-72 and it pulls all the threads I have started and posted in. I have no trouble with the search on the site.

**michael bustamante** · 01-30-2015, 12:47 PM

great thanks guys. i figured 67 would be different. t bone what would you charge for a 67 hei harness?

ray_mcavoy · 01-30-2015, 03:29 PM

Quote:

Originally Posted by FirstOwner69

Not sure what the difference is with the 67s, but I think the early years routed the wire through the grommet with the washer hoses or oil line and the later years used a dedicated hole near the fuse block with a grommet molded onto the harness.

Quote:

Originally Posted by TBONE1964

With that said, the 67 is a 67 only tach harness. I can build one if I had a sample to follow. I think the key difference is the way it routes. It does not follow the harness under the dash and come out of the firewall to the drivers side of the junction block like the 68-72 tach harnesses do.

You're right ... the wire routing is different between the 67 vs. 68-72 tach harnesses.

The 67 routing is sort of a carry-over from 63-66. The brown coil wire follows the line for the oil pressure gauge out through the firewall, sharing the same grommet.

**TBONE1964** · 01-31-2015, 05:58 AM

Quote:

Originally Posted by jocko

consider the pebbles snatched from the hand and the length of the rice paper walked.. go forth and make tach harness, young kwai chaing tbone.

Young I am not, Master very wise

**michael bustamante** · 01-31-2015, 02:13 PM

i dont know about you guys.... quit huffing them fumes....

t bone if you get any specs, can you pm me a price for a harness? hei.

**TBONE1964** · 01-31-2015, 02:22 PM

Quote:

Originally Posted by michael bustamante

i dont know about you guys.... quit huffing them fumes....

t bone if you get any specs, can you pm me a price for a harness? hei.

Michael,

I don't no about specs. Two things we can do. I can spend the money to buy an aftermarket 67 only tach harness to model from (You could just buy it and be done, if you wanted to)

Or,

I can build you a tach harness and you tell me how long you want the brown wire to be going to the coil on your HEI. From what I gather, the brown wire goes through the firewall with the oil pressure line.

I can crimp and solder the correct HEI end on it for you. The rest of the harness is the same as a 68-72.

Basically the 67 is the same as the 68-72 with the exception of no firewall grommet and a shorter coil (brown) wire.

Send me a PM on this and I will let you know what I can do for you.

Let me know
Tom

**michael bustamante** · 01-31-2015, 02:39 PM

ill contact you as soon as i get the cluster. its coming usps

01-29-2015, 03:22 PM	#1
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	tach wiring SO i just purchased a factory tach cluster from a 67 for my 67 but i need the wiring harness. I bet i could make one but i thought id hit you guys up first to see if any of you have made any and want to share your knowledge. with out a search feature i cant search and im sure someone has asked how to make a tach harness before. also is there a difference in the 67 tach and all the other years? __________________ 1967custom

01-29-2015, 07:48 PM	#2
FirstOwner69 Senior Member Join Date: May 2010 Location: Wisconsin & Arizona Posts: 4,852	Re: tach wiring I bought mine on eBay about 3 years ago from Roger Koop. He is now a board member as RogerKoop. You might want to PM him to see if he still sells them. Otherwise, Classic Industries sells them. Their numbers: 67 w/o HEI- CT20645 67 HEI- CT39694 68-72 w/o HEI- CT20635 68-72 HEI- CT39695 Not sure what the difference is with the 67s, but I think the early years routed the wire through the grommet with the washer hoses or oil line and the later years used a dedicated hole near the fuse block with a grommet molded onto the harness.

01-29-2015, 09:29 PM	#3
Wizo Registered User Join Date: Dec 2012 Location: Tacoma WA Posts: 274	Re: tach wiring TBONE 1964 might be able hook you up. shoot him a PM. __________________ 1970 3/4 ton long box GMC !968 C10 short stepside (Papa's Old Lorry) 2006 2500 HD Silverado Duramax/Alison

01-29-2015, 11:46 PM	#5
SS Tim Registered User Join Date: Aug 2010 Location: Edwards, CA Posts: 7,503	Re: tach wiring The google site search works fine for most things. http://www.google.com/custom?domains...D%3A1%3B&hl=en __________________ Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID Blazer SPID Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders Do you have a 1972 Plaid Pickup? Plaid Blazer ** Plaid Suburban

01-30-2015, 12:16 AM	#6
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: tach wiring Yes, i found that adding "67-72 chevytrucks" to my searches on Google is actually more powerful than the site search function, it pulls up related threads. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

01-30-2015, 12:29 AM	#7
davischevy Senior Member Join Date: Sep 2008 Location: Harrison, Arkansas Posts: 9,860	Re: tach wiring I bought one from; TBONE1964 http://67-72chevytrucks.com/vboard/member.php?u=119465 __________________ other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless.

01-30-2015, 02:32 AM	#8
TBONE1964 Cluster King Join Date: Nov 2012 Location: Junction City, OR Posts: 5,263	Re: tach wiring Yes, I have not been able to go to the location to search my listed threads for some reason as well. it says something like "search disabled". I have just recently noticed this. i like to go to that page to up date all of my threads because it is an easy way to find them. With that said, the 67 is a 67 only tach harness. I can build one if I had a sample to follow. I think the key difference is the way it routes. It does not follow the harness under the dash and come out of the firewall to the drivers side of the junction block like the 68-72 tach harnesses do. If there was enough interest in a 67 only tach harness, I would buy one to model from and make them like I make my 68-72's. Hope this helps, Take care, Tom __________________ Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C

01-30-2015, 12:04 PM	#11
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: tach wiring consider the pebbles snatched from the hand and the length of the rice paper walked.. go forth and make tach harness, young kwai chaing tbone.

01-30-2015, 12:30 PM	#12
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: tach wiring I type my user name in the box up top of the page and selct 67-72 and it pulls all the threads I have started and posted in. I have no trouble with the search on the site. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

01-30-2015, 12:47 PM	#13
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: tach wiring great thanks guys. i figured 67 would be different. t bone what would you charge for a 67 hei harness? __________________ 1967custom

01-31-2015, 02:13 PM	#16
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: tach wiring i dont know about you guys.... quit huffing them fumes.... t bone if you get any specs, can you pm me a price for a harness? hei. __________________ 1967custom

01-31-2015, 02:39 PM	#18
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: tach wiring ill contact you as soon as i get the cluster. its coming usps __________________ 1967custom

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