Thanks for the reply. I think I'm going to give it a try at some point in the fairly near future. Probably use the temp sensor. What can it hurt... I've seen several videos that seem to indicate that the engine cooling system is robust but the tranny seems to get kind of hot in extreme...
Anyone know of a video or write up on installing an aftermarket trans cooler on a gen 4 Tacoma? I plan on towing a lot and want to add one in an abundance of caution. I found a some tutorials for Gen 3 where they mount it in front, but I've heard of people doing it under the vehicle for gen 4...