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Re: Need help with wiring stock temperature and vacuum gauges
When you go to the auto parts store to buy the sending unit they'll probably ask you "idiot light" or "gauge"--you want "gauge".
I'm guessing GM used a hard line for the vacuum gauge on our trucks, but by the late '70s they were using rubber hose so that is an option.
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'05 Chevy 2500HD 4x4
'72 GMC LWB 4x2 driver
'72 Chevy LWB 4x4 plow truck
'71 Blazer 4x4 driver
'70 GMC LWB trailer
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