I'm going to swap my nv5600 out of my dodge sometime in the next year for an auto. The truck is going to be track only since I drive a company service truck everyday. I'm wondering what auto to use since all i've ever ran is standards. Trucks an 04 Dodge 2500 2wd. Will be converting it to a dually as well to run slicks on the back. Also need to know which transmission cooler to use, will have to be mounted in the bed. Any help on this will be much appreciated.