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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Apr 2010 Posts: 126 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2010 Posts: 126 | does any one have a wiring diagram for a 1966 chevy c-30 instrument cluster? or know a site that has a decent one? thanks
66' Chevy C-30 Rat
| | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | be one in your shop manual .... otherwise, try thisBill | | | | | Joined: Apr 2010 Posts: 126 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2010 Posts: 126 | thats not quite what i was looking for, but still good! i think the printed circut connector is what im looking for a better description of. . . .im not sure though. i dont have a shop manual-im poor for the moment. construction- when the work's not there, its just not there; its just not there!
66' Chevy C-30 Rat
| | | | | | ZooKeeper Unregistered | | ZooKeeper Unregistered | How about THIS ONE........joe | | | | | Joined: Apr 2010 Posts: 126 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2010 Posts: 126 | still not quite what im looking for. im trying to figure out how to wire the gauges (tach and fuel level gauge mostly). the harness was shot due to a thermo nuclear melt down from the previous owner, combined with switching from an externally regulated alternator to an internally regulated alternator- im just wondering what wires went to what originally. the tach has 2 wires; black and an orangy, pinkish, brown (its faded so i dont really know what color it is). and the fuel level gauge has a pink and light brown/tan wire coming out of it. i know the brown one is connected to the fuel sending unit- but where does the pink one go? im thinking that it goes to a power source, but i dont want to ruin the gauges if they still work. and the tach im thinking the black goes to the neg pole on the coil and the other is power? if any one knows i could use the help! thanks
66' Chevy C-30 Rat
| | | | | Joined: Dec 2006 Posts: 720 'Bolter | | 'Bolter Joined: Dec 2006 Posts: 720 | Hey Brian, is there an ID plate on your tach? Will help determine wether you wire direct to the coil or if there should be a signal generator in there somewhere.
1956 GMC 370 dump " 'Tater "1970 VW Volksrod "the Black Bomber" 2007 Chevy Avalanche 2020 Jeep Cherokee Trailhawk, 2005 Harley Davidson FLHTCUI I dig all cars, old and new, whether they were hammered out of American iron, German steel, or Japanese tin cans. Being unable to appreciate them all is missing out on a world of great things.
But thats just MY opinion! :P
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