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C3 Corvettes, 1968 - 1982
C3 Tech/Performance
Electrical Experts needed

C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette

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Old

Aug 3, 2008 | 07:18 PM

#1

chevr0letman

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Joined: Apr 2008

Posts: 91

Likes: 0

From: Stockton California

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Electrical Experts needed

I'm trying to retrofit a 77 cluster into a 75 vette, On the fuel gauge of the 75 there are only 2 terminals, but on the 77 there are three.

Can anyone tell me what the 77 fuel gauge needs to work?

Anyone know where I can get a schematic?

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Old

Aug 3, 2008 | 08:06 PM

#2

FB#1

Racer

Joined: Aug 2004

Posts: 354

Likes: 6

From: Winston Salem NC

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Ground
+ from sending unit
light

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Old

Aug 3, 2008 | 08:20 PM

#3

...Roger...

Race Director

Joined: May 2006

Posts: 16,528

Likes: 53

From: Dayton, Ohio

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Their pretty much the same.
Ground and Positive....and the wire going back to sender.
On the 75 the 3rd post grounds to the case

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