Where is the temperature sending unit to guage on my 1986 2.8 liter v6 Wagoneer?

I would like to know where the temperature sending unit is located. The one that goes to the gauges in the vehicle?


My temp gauge spins around and goes crazy!



Thank you!



1986 Wagoneer Limited

Automatic - Select Trac

2.8 liter V6
Transfer Case NP 228A

From https://www.jeepforum.com/forum/f11/coolant-temp-gauge-86-2-8-a-790617/

Thank you!