Automatic transmission temperature sensor the master debate...
You all can debate the merits of where to install a temperature sensor on the transmission, what is best or what temp reading is important to you, before or after cooling etc but from what information I gathered about how the factory did it (on trucks with that option for example) the sensor was installed in the rear servo pressure test port. That’s what I discovered in my research on where to install, and it couldn’t have been easier. The Stewart Warner electric gauge I’m using works. YMMV