They are only about $150 brand new, if its got you spooked then it wouldnt cost much to replace it every couple years. What exactly is causing the issue, are they cracking, or corroding?
I dont think you can easily move it as the hoses going to it are for the coolant, the exchanger itself sits on the transmission and is sealed with two o-rings. I dont think are any threaded or barbed connections where you could tap into the transmission fluid flow.
If you're under warranty, leave it as is. Once the warranty is up, spend a few bucks and put a new one on and dont overly worry about it.
