CMP GM Dash Oil Pressure thread size?

[Jordan Baker]

Originally Posted by Bruce Parker

Interesting. If you look carefully at my pic of the Chev gauge below you'll see "0" on the left and "30" on the right, perfect range for a splash 216. Yet painted on the glass dash panel for a GMC 270 (the panel was Fox) the range is "0" to "80" and the 0/30 would be completely covered. But pressure is pressure so how would the gauge figure out which scale to use?

This is why I’m thinking there might be an error in the parts books for the Fox and Otter. I’ll have a go through the GM service bulletins for the Fox and Otter and see if anything mentions that oil gauge.