Transmission starting to hesitate when shifting through all gears. After researching online through forums, I read that Jeep TJ automatic transmission tends to be very faulty because of the high temperature they run with stock equipment and everyone suggested installing a transmission cooler.

I replaced the transmission fluid from the system with new one (MOPAR OEM Transmission fluid) and also placed a transmission cooler at the front of the grill. And now the transmission feels A LOT BETTER plus transmission is not getting that hot anymore. Would recommend to anyone not only with TJs but with JK, worth the money.