I have a 94 trooper with 180,000 miles 3.2L DOHC Automatic that I would like to set up to tow a 500 lb trailer with a 1000lb load. I think the transmission was rebuilt at 160,000 miles. I was wondering if I was to add a electric fan to the transmission fluid after market cooler and a remote spin on filter with temperature guage that I could keep the transmission alive for another 100,000 miles. I belive that if could keep the transmission fluid between 180 to 200 degrees F it would have to help extend the life of the transmission. I live in south Texas where we see temperatures of over 100 degrees F.