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Old 05-11-2016, 09:29 PM   #1
coldgin
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temperature sending unit

question for you guys....my 1969 gmc 3/4 I rebuilt the engine and used newer model 305 heads.... the the temperature sending unit is smaller and now my temp gauge isn't working due to the wrong sending unit...does anybody know of a sending unit that will work my temp gauge properly?i was told I have the option of putting the oem sending unit in the waterneck...
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Old 05-11-2016, 09:48 PM   #2
FirstOwner69
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Re: temperature sending unit

This may help.

http://67-72chevytrucks.com/vboard/s...d.php?t=627880
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Old 05-11-2016, 09:53 PM   #3
my56chevytruck
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Re: temperature sending unit

Quote:
Originally Posted by coldgin View Post
question for you guys....my 1969 gmc 3/4 I rebuilt the engine and used newer model 305 heads.... the the temperature sending unit is smaller and now my temp gauge isn't working due to the wrong sending unit...does anybody know of a sending unit that will work my temp gauge properly?i was told I have the option of putting the oem sending unit in the waterneck...
What gauges are you using?? sending unit and gauges should be of the same manufacturer. auto meter or dolphin gauges should use their sending unit and so forth.
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Old 05-12-2016, 07:16 AM   #4
coldgin
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Re: temperature sending unit

factory dash gauge
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Old 05-13-2016, 10:01 PM   #5
coldgin
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Re: temperature sending unit

update on truck...I removed the 3/4 pipe plug at the top of the water pump and installed a nipple then a 3/4 to 1/2 reducer then screwed the sending unit in....walah temp gauge works!
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Old 05-13-2016, 11:38 PM   #6
my56chevytruck
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Re: temperature sending unit

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Originally Posted by coldgin View Post
update on truck...I removed the 3/4 pipe plug at the top of the water pump and installed a nipple then a 3/4 to 1/2 reducer then screwed the sending unit in....walah temp gauge works!
BINGO!!! good going. to own these old rides you have to be inventive and creative.
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