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#1 |
Registered User
Join Date: Sep 2009
Location: Perry, OK
Posts: 27
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Factory Tach
Is the factory tack use the printed circuit or does it have independent wiring?
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#2 |
member #16
![]() Join Date: Dec 1999
Location: Yuba City Ca.
Posts: 3,618
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Re: Factory Tach
has its own two wire harness.
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john http://67-72chevytrucks.com/vboard/showgroups.php board vendors ![]() http://www.flickr.com/photos/1745471...7602865984234/ |
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#3 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,736
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Re: Factory Tach
The printed circuit is different for the factory tach but the tach doesn't use it. Hope that makes sense. It is a 2 wire set up as stated. Eric
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67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#4 |
Registered User
Join Date: Sep 2009
Location: Perry, OK
Posts: 27
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Re: Factory Tach
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#5 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,736
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Re: Factory Tach
If you need pics, i can put some up tomorrow. Eric
__________________
67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#6 |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: Factory Tach
I purchased a working tach cluster off the parts board here. Before I could install it folks on this page were debating how accurate the factory tachs are. I felt like there were more people who thought they weren't all that accurate so I used the printed circuit out of my 'new' cluster for the tach opening and installed an aftermarket tach. Long story short, in the attached picture you can see what a factory tach opening printed circuit looks like. The tach under it isn't factory.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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