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I have installed a trans temp gauge but am struggling to find a sensor adaptor for the diff. I'm using oil temp gauges that go up to 300 because on my C5 the trans temp gauge would only go to 260 and actually quit reading at 240 and pegged full hot until complete cool down.
I need a 1/8 npt to M20 x 1.5 adaptor for the diff. The only one I can find on the internet is in England so that would be a hassle to get. Autometer only goes up to M16 x 1.5.
Any of you folks have any advice on where to get this adaptor?