Is there only a benefit to adding one trans cooler? what if i had the time and resources to install many trans coolers, say 3 or 4? Would there be a benefit? Will my transmission life increase with each trans cooler i add, because i'll do it. Are there any transmission life benchmark number i can go by? The AX4S is a transmission that is somewhat prone to failure, right? How much of a difference does a trans cooler make when it comes to the inevitabilities of a weak transmission?