Will be installing a transmission temp gauge on my sc400 and see that there are a couple of test ports on the transmission. The unit's sender comes with 1/8" npt fitting, someone have the diameter of those tests ports so I can order the correct adapter?

 

Hey! Did you end up finding out what diameter this port was?
Also which gauges did you buy? did you have to purchase an after market sending unit or the one that came with the gauge

Thanks!