i have 2004 armada and looking for something will help to pull a 26' toy hauler. any suggestions

Is what you're really asking for is a brake controller??? Color me ignorant...but not sure why you would want a programmer to help with this problem.... Although it does raise an interesting question -- has anyone tried tuning their engines with a programmer...and with any benefit over stock tuning???

i have 2004 armada and looking for something will help to pull a 26' toy hauler. any suggestions

How much does your toy hauler weigh? I'm towing a 26' travel trailer, about 5500#'s, and the Armada handles it great. I know a bunch of others on this forum are doing the same.