Ok, I've got an 06 f250 with the 5.4, and 3:73s. Just picked up a 36' 5th wheel toy hauler that weighs on just under 10k, which is maxxing my gcvw. The truck does "ok" pulling it, but could deffinatly do better. So, my question is, would you re-gear to 4:11s first or go the tuner/exhaust/intake route first? Thoughts-opinions?
