DieselManor has just released our Transcender. It is a little devise that allows you to monitor trans temps at the cooler line w/o the need for replacing the entire line w/ one that has a port in it, or tapping onto the line. We would like to know your feedback if you've purchased one and how well it's working. We've tested them, and they do run slightly cooler than in the line itself. Your criticism is welcome.
Link:
Transmission Gauge Adapter at DieselManor
Linear Mode
