Gauge Installation on a Gen 2 Dodge Cummins

One location for installing the transmission temp gauge sender is in the test port located here on the passenger side of the transmission housing.  The plug is removed (arrow) and a sender extender (Part #: DM-SNDX) is installed to accept the sender.  Because the port isn't deep enough to allow for the sender to be installed by itself, the sender extender is used.