if you can eliminate the rad through cooler, if your motor over heats at some time it will doo the same too the tranny. stock trans coolers do the bare minimum for cooling, best way is too go by your gvw and mach up a aftermarket one. compare the two for size and you will be surprised. some people say that you can actuly over cool a tranny, this may be so ...say in alaska or yukon. hahah.... where you live dont even worry about it.