Transmission coolers can be mounted just about anywhere. However, they should be placed where there's good airflow and where they can't easily be hit and damaged. This cooler was mounted by welding four tabs to the custom suspension frame. The cooler was held in place, the tabs were tacked on, and then the cooler was removed so the tabs could be fully welded without damaging the cooler. A thermal switch will activate the fan when the fluid temperature reaches 175 degrees F.