Trans cooler help

I don't agree. When the trans is working hard and extra cooling is needed, it wont matter what configuration you choose, either will cool just as efficiently.

However, the OEM cooler uses the engine coolant to heat up the trans fluid quicker on colder days. I would prefer the OEM cooler after then aux cooler to help prevent the fluid from getting over cooled during very cold winter days as well as allow the fluid to warm up quicker.

While is not a huge deal, when you consider that either configuration is just as easy to hook up, its a no-brainer for me