49,
Chevy Duty said the guy that answers their gauge questions said that you sometimes have to zero the gauge to the sender. But he wouldn't elaborate on how to do it. Kind of a secret I guess. If you could zero the gauge to the sender you could use any sender you wanted. I thought maybe there was a screw on the back of the gauge you could use to move the needle back some after reaching operating temp. I didn't see one. Could be the inline resistor thing.
