1972 gmc dash wiring
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Teching In
Joined: Jan 2016
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1972 gmc dash wiring I just recently put in a 5.3 in my truck. I am trying to figure out how to wire in the new dash cluster I bought from classic instruments. Has anyone else used them before? Can I make this cluster work with the 5.3? Any help would be great
TECH Enthusiast
Joined: Sep 2014
Posts: 732
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From: alburnett, iowa
Did you buy electric gauges or mechanical? Instruction sheet usually gets you going rite direction. Just make sure you have good grounds and fuse links wouldn't hurt anything in power supply wires.
TECH Enthusiast
Joined: Sep 2014
Posts: 732
Likes: 1
From: alburnett, iowa
I never used those gauges. The ones I bought from speedway I used in skylark. I installed all gauges in panel. I bought a radio plug connector set(male & female sides) and wired everything thru it so can remove easy if needed. I tied all grounds together on gauge side. car side is 1 wire for ground. tied all guage lights together hooked up to original power wire for dash lights. the rest just went out to senders or hooked in for power. speedo goes to your output of pcm
