Tach Question....... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

harshard · 12-01-2009, 04:38 PM

How hard is it to install a factory tach in a factory non tach dash on a '71? Can this be done without replacing or changing the circuit board and back plate? I only have the tach and the inst. lens. Thanks for your help, Shawn

**71blksuper4x4** · 12-01-2009, 07:30 PM

You need the printed circuit board, the inner black tin with the proper tach hole punched in, and the outer backing tin that is cut out specifically for the tach. Trevor

harshard · 12-01-2009, 07:33 PM

Thanks for the info. did not think I would get out that cheep.

harshard · 12-03-2009, 03:27 PM

I ordered the printed circuit but I think I wil try to cut the back plate my self. They only sell the back plates in a kit that is 350.00. Hopefully I can make this work. Shawn

72BlckButy · 12-03-2009, 03:47 PM

Shawn check with ECE (www.earlyclassic.com) they actually sell the front/rear tins for $40.

harshard · 12-03-2009, 07:46 PM

Thanks 72blckbuty I will check that site.

mrein3 · 12-03-2009, 11:19 PM

I made my own hole and used a tach printed circuit.
The tach is a cheapo I bought at checkers over the counter. I pulled the front of the case off and installed the rest in my dash.

To make it easier to remove my dash bezel - which I just did this past weekend - I used a 4-wire flat trailer connector behind the bezel for the tach. 4 wires for 12V + and -, tach signal, and dash lights. Now to remove my bezel I do all the usual stuff (oil line, wiper nob, headlight switch, speedo, shift fiber optic) then I disconnect the 4-wire trailer connector and remove my dash bezel.

Works for me.

unclewatts · 12-04-2009, 12:52 AM

That looks nice Mrein3.

mrein3 · 12-04-2009, 08:39 AM

Quote:

Originally Posted by unclewatts

That looks nice Mrein3.

Thanks.
Speaking of dash restoration/upgrade, what is the latest thinking on new bezels?
I obviously could use a new one. I know NOS ones are out there floating around but are expen$ive.

Who supplies the best re-pop out there?

12-01-2009, 04:38 PM	#1
harshard Registered User Join Date: Aug 2008 Location: Kaufman,Texas Posts: 102	Tach Question....... How hard is it to install a factory tach in a factory non tach dash on a '71? Can this be done without replacing or changing the circuit board and back plate? I only have the tach and the inst. lens. Thanks for your help, Shawn

12-01-2009, 07:30 PM	#2
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,156	Re: Tach Question....... You need the printed circuit board, the inner black tin with the proper tach hole punched in, and the outer backing tin that is cut out specifically for the tach. Trevor __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

12-01-2009, 07:33 PM	#3
harshard Registered User Join Date: Aug 2008 Location: Kaufman,Texas Posts: 102	Re: Tach Question....... Thanks for the info. did not think I would get out that cheep.

12-03-2009, 03:27 PM	#4
harshard Registered User Join Date: Aug 2008 Location: Kaufman,Texas Posts: 102	Re: Tach Question....... I ordered the printed circuit but I think I wil try to cut the back plate my self. They only sell the back plates in a kit that is 350.00. Hopefully I can make this work. Shawn

12-03-2009, 03:47 PM	#5
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Tach Question....... Shawn check with ECE (www.earlyclassic.com) they actually sell the front/rear tins for $40. __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

12-03-2009, 07:46 PM	#6
harshard Registered User Join Date: Aug 2008 Location: Kaufman,Texas Posts: 102	Re: Tach Question....... Thanks 72blckbuty I will check that site.

12-03-2009, 11:19 PM	#7
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	Re: Tach Question....... I made my own hole and used a tach printed circuit. The tach is a cheapo I bought at checkers over the counter. I pulled the front of the case off and installed the rest in my dash. To make it easier to remove my dash bezel - which I just did this past weekend - I used a 4-wire flat trailer connector behind the bezel for the tach. 4 wires for 12V + and -, tach signal, and dash lights. Now to remove my bezel I do all the usual stuff (oil line, wiper nob, headlight switch, speedo, shift fiber optic) then I disconnect the 4-wire trailer connector and remove my dash bezel. Works for me. Attached Images __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

12-04-2009, 12:52 AM	#8
unclewatts 70 Chevrolet=Obsession Join Date: Jun 2009 Location: nice ca Posts: 1,067	Re: Tach Question....... That looks nice Mrein3. __________________ I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner)



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