Hey i have an un-supercharged 4runner that im looking to probably be towing some substantial weight with, i am already planning to to a transmission cooler but was curious on which one was of the best quality, easiest to install, and keep my transmission to coolest. In addition to this i was curious if the valve body upgrade would also be worth it to further extend my transmission life while im towing with it? Going to be towing anything from 5 dirtbikes plus 2 4wheelers regularly to a 240sx project car. Truck as 180+k miles on it and just want to get as much life out of the tranny as possible. Havent done the tundra brake upgrade yet simply because of lack of funds but i think im going to go the junk yard route for that. Any input would help, as a new member really appreciate your speedy and informative responses.