Re: how tuff is it to install a tach dash into a non tach truck
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
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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.
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'68 50th Anniversery LWB Custom Fleetside, '77 305 v-8, turbo 350, factory speed alert (still works), '71 drivetrain w/front discs. Some call it ugly yellow, others call it Ochre
'83 Jeep CJ-7, <80,000 miles, original owner
'04 Chevy Suburban, 4x4, 2500, 6.0 ltr, Predator Diablo programmer
'95 GMC K1500 Extended cab
Last edited by 68speedalert; 04-04-2006 at 01:32 PM.
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