I want to put a trans temp gauge in my crew, I tow a big trailer once in a while. Thinking line from trans to cooler, reading the hottest. Would the return line be better? Pan is out, test port is too hard to access, no lift. I’ve been searching this. Haven’t found a straight answer.
Please help. Aux cooler installed, I want to know temp. After years of racing has me watching gauges a lot