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Old 05-12-2015, 11:11 AM   #4
terrylgreenjr
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Join Date: Jul 2011
Location: Dallas, TX
Posts: 183
Re: Suburban gauge question ??????

When I did my swap I used the LS sensor on teh drivers side head for the ECM input and removed the plug on the passenger side head to install the sensor for the cluster. When I had the plug out I just matched the threads I cant remember the size. I know it is smaller then the 91-90 factory sensor for sure
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