Tach mounting on door pillar - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Forrest · 05-28-2019, 08:30 AM

For those that have mounted a tach on the door pillar, was there a way to route the wires inside the pillar and under the dash without drilling more than one hole where the tach would mount? Or were the wires run on the outside of the pillar?

**special-K** · 05-28-2019, 09:24 AM

I don't remember but I think I slipped the wires under the door gasket, then snuck them under the dash. I like that position better than factory.

**HO455** · 05-28-2019, 11:19 PM

Yes you can route the wires through the pillar. Suburban's run the tail light harness through the pillar. It won't be easy and a full tank of patience will be required, but it can be done.

Forrest · 05-28-2019, 11:33 PM

Thanks for both suggestions. If I was to route inside the pillar I think I would have to drill a hole at the bottom of the pillar where it is separated from the under dash area. Should there already be a hole there in a C-10?

**special-K** · 05-29-2019, 06:53 PM

Yeah, I've run clearance lamp wires through the pillar. But I took it you were wondering about drilling a hole to get out to the tach. I did it the way I described, no holes, and you hardly saw the wire sneaking out between the door gasket and dash. Another way is to remove dash pad and slip wire under that and through one of the slots (with wear protection)

**HO455** · 05-29-2019, 09:37 PM

Quote:

Originally Posted by Forrest

Thanks for both suggestions. If I was to route inside the pillar I think I would have to drill a hole at the bottom of the pillar where it is separated from the under dash area. Should there already be a hole there in a C-10?

There is an access. That's where the patience part comes in. Photo poorly shows where the hole (circled) is on my Suburban.

05-28-2019, 08:30 AM	#1
Forrest Registered User Join Date: Jul 2000 Location: Apex, NC, US Posts: 13	Tach mounting on door pillar For those that have mounted a tach on the door pillar, was there a way to route the wires inside the pillar and under the dash without drilling more than one hole where the tach would mount? Or were the wires run on the outside of the pillar? __________________ 72 Cheyenne Apex, NC

05-28-2019, 09:24 AM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Tach mounting on door pillar I don't remember but I think I slipped the wires under the door gasket, then snuck them under the dash. I like that position better than factory. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

05-28-2019, 11:19 PM	#3
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 11,350	Re: Tach mounting on door pillar Yes you can route the wires through the pillar. Suburban's run the tail light harness through the pillar. It won't be easy and a full tank of patience will be required, but it can be done. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

05-28-2019, 11:33 PM	#4
Forrest Registered User Join Date: Jul 2000 Location: Apex, NC, US Posts: 13	Re: Tach mounting on door pillar Thanks for both suggestions. If I was to route inside the pillar I think I would have to drill a hole at the bottom of the pillar where it is separated from the under dash area. Should there already be a hole there in a C-10? __________________ 72 Cheyenne Apex, NC

05-29-2019, 06:53 PM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Tach mounting on door pillar Yeah, I've run clearance lamp wires through the pillar. But I took it you were wondering about drilling a hole to get out to the tach. I did it the way I described, no holes, and you hardly saw the wire sneaking out between the door gasket and dash. Another way is to remove dash pad and slip wire under that and through one of the slots (with wear protection) __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

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