how tuff is it to install a tach dash into a non tach truck - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tom71 · 04-02-2006, 11:34 PM

my blazer has a full dash and no tach how difficult is it to install? tools need ed ? thanks for the input

bluec10 · 04-02-2006, 11:59 PM

Sorry, I don't have an answer, but I'd love to hear from one of the members who have done this successfully.

rauto13 · 04-03-2006, 12:19 AM

Are you wanting to use an original tach dash, or add a tach to your existing dash?

I put an Autometer tach in the center hole of my existing non tach dash, had to make a spacer due to the printed circuit board on the back of the dash panel, do some cutting and grinding, wasn't too hard to do.

**Ricks1971** · 04-03-2006, 12:24 AM

This guys have a conversion kit for putting a orginal tach in your dash!
http://www.truckandcarshop.com/trucks60_72/t60_032.html

**kwmech** · 04-03-2006, 12:45 AM

If going factory style, you need a phillips screwdriver and a 5/16 wrench and the correct harness to hook up to the coil.

72armyswbtruck · 04-03-2006, 12:51 AM

This is the easiest swap out there going, just unbolt a few screws, unscrew you oil pressure line, and speedo from the back of the speedometer and out comes the console, then just a few screws, to unbolt the bezel and backing plate, switch out backing plates, install the tach, finish with replacing the bolts and there you have it,
that easy

70c10 · 04-03-2006, 07:37 AM

Here is mine with an aftermarket tach and clock. I'm finishing up another one with a Camaro tach and clock soon. Check the FAQ forum for directions that others have posted.

tom71 · 04-03-2006, 03:29 PM

i have a tach dash i just need to know about the wiring is there a harness i need to buy ? im guessing there is , and i did a hei swap will the factory tach work?

byrd · 04-03-2006, 05:57 PM

Yes the fact tach will work with HEI, and the fact wiring harness will work as well. Just need to cut off the fork lug and replace it with a insulated female spade lug and hook it up to the spot marked tach on the HEI dizzy and your in business. Randy

68speedalert · 04-04-2006, 01:24 PM

Quote:

Originally Posted by byrd

Yes the fact tach will work with HEI, and the fact wiring harness will work as well. Just need to cut off the fork lug and replace it with a insulated female spade lug and hook it up to the spot marked tach on the HEI dizzy and your in business. Randy

You are correct about the HEI dizzy working, and you and others are correct for the swap if the origional is a full gauge dash. If your origional has just the idiot lights, you need to change the wiring.

GMC Paul's web-site has a tech tip, part-way down the page on how to do it.

http://www.gmcpauls.com/Tech%20Tips1.htm

Numberone son bought a used dash unit that we had to go thru, combining parts/gauges from 3 different dash units to get to it to work. I think someone just plugged the dash to the unchanged wiring....hoping it would work.....and let the 'smoke' out of the gauges.

2bits · 05-11-2007, 08:47 PM

Jim, those white face gauges look awesome. I usually don't like that because they are usually aftermarket gauges and I like the style of OEM, but that is a clever way to modernize and keep the classic look! I'm gonna think about that when I get to painting my bezel since my interior is black with grey accents. How did you get the gauges mirror imaged like that though? Purchased?

LUV2XCLR8 · 05-12-2007, 04:58 AM

Quote:

Originally Posted by 70c10

Here is mine with an aftermarket tach and clock. I'm finishing up another one with a Camaro tach and clock soon. Check the FAQ forum for directions that others have posted.

I likey

04-02-2006, 11:34 PM	#1
tom71 what happened to flint mi Join Date: Oct 2005 Location: san diego Posts: 436	how tuff is it to install a tach dash into a non tach truck my blazer has a full dash and no tach how difficult is it to install? tools need ed ? thanks for the input __________________ 71 swb 2wd fleet frame off in progress 72 4x4 blazer daily driver 70 olds cutlass s mint condition owned by a grandma 56 gmc 2wd project waitng 97 fiance mobile

04-02-2006, 11:59 PM	#2
bluec10 Registered User Join Date: Apr 2002 Location: Manitoba, Canada Posts: 663	Re: how tuff is it to install a tach dash into a non tach truck Sorry, I don't have an answer, but I'd love to hear from one of the members who have done this successfully. __________________ Present: 2015 Tacoma. Yeah, not a GM, but I love it. 1969 GMC 32,000 - fix, drive, relax, fix... 2019 BMW R1250 GSA - Yahoooooooo 1979 Honda GL 1000 - retro touring at its best. Past: '05 Sierra 4x4 - Had 270,000 KM and running well when it was written-off by a stop sign runner. '94 F-150 from the "F word" company. I'll admit it...good truck. Sold what was left of it for $800 to a guy who came to pick it up at 11:00 PM with cash in hand. Hmm. '79 Sierra Grande (Black) organ donor - perfect rebuildable 4-bolt 350 and a good TH350. '76 Sierra Grande (Orange) - hate isn't too strong a word. Kid who bought it turned it into a hot rod. '68 C-10 R.I.P. - Dad's old truck...too far gone to resurrect. '59 C-50 - with hoist. Truck is gone, wife isn't. Nuff said.

04-03-2006, 12:19 AM	#3
rauto13 saving one more Join Date: Sep 2005 Location: Pryor Creek, Oklahoma Posts: 3,066	Re: how tuff is it to install a tach dash into a non tach truck Are you wanting to use an original tach dash, or add a tach to your existing dash? I put an Autometer tach in the center hole of my existing non tach dash, had to make a spacer due to the printed circuit board on the back of the dash panel, do some cutting and grinding, wasn't too hard to do. __________________ 72 Chevy longbed - now for parts 69 Chevy short fleet - needing some love 70 RS Camaro - needing more love driver - 96 GMC X-cab

04-03-2006, 12:24 AM	#4
Ricks1971 Senior Member Join Date: Mar 2006 Location: Clarkrange Tennessee Posts: 1,787	Re: how tuff is it to install a tach dash into a non tach truck This guys have a conversion kit for putting a orginal tach in your dash! http://www.truckandcarshop.com/trucks60_72/t60_032.html

04-03-2006, 12:45 AM	#5
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,650	Re: how tuff is it to install a tach dash into a non tach truck If going factory style, you need a phillips screwdriver and a 5/16 wrench and the correct harness to hook up to the coil.

04-03-2006, 12:51 AM	#6
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,033	Re: how tuff is it to install a tach dash into a non tach truck This is the easiest swap out there going, just unbolt a few screws, unscrew you oil pressure line, and speedo from the back of the speedometer and out comes the console, then just a few screws, to unbolt the bezel and backing plate, switch out backing plates, install the tach, finish with replacing the bolts and there you have it, that easy __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-03-2006, 07:37 AM	#7
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Re: how tuff is it to install a tach dash into a non tach truck Here is mine with an aftermarket tach and clock. I'm finishing up another one with a Camaro tach and clock soon. Check the FAQ forum for directions that others have posted. Attached Images __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads Last edited by 70c10; 04-03-2006 at 07:38 AM.

04-03-2006, 03:29 PM	#8
tom71 what happened to flint mi Join Date: Oct 2005 Location: san diego Posts: 436	Re: how tuff is it to install a tach dash into a non tach truck i have a tach dash i just need to know about the wiring is there a harness i need to buy ? im guessing there is , and i did a hei swap will the factory tach work? __________________ 71 swb 2wd fleet frame off in progress 72 4x4 blazer daily driver 70 olds cutlass s mint condition owned by a grandma 56 gmc 2wd project waitng 97 fiance mobile

05-11-2007, 08:47 PM	#11
2bits Registered User Join Date: Jan 2006 Location: Dallas Posts: 504	Re: how tuff is it to install a tach dash into a non tach truck Jim, those white face gauges look awesome. I usually don't like that because they are usually aftermarket gauges and I like the style of OEM, but that is a clever way to modernize and keep the classic look! I'm gonna think about that when I get to painting my bezel since my interior is black with grey accents. How did you get the gauges mirror imaged like that though? Purchased? __________________ _______________ Thomas '78 Silverado '74 Monte Carlo '47 Teardrop Trailer East Texas Classics Local Club

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.