Who knows Dodge Ram auto.Transmissions?

There is a governor on those trannys that can stick. Fairly common problem with the 42/44/46RE trans. Could be the sensor for it too. Transmission governor pressure sensor.
(edit) looks like somebody beat me to the punch!

Thanks for the help guys!
I'm not sure what trans. it is it looks like a 727 and has the same pan and filter.

Where is the sensor located for it?