Hi: My name is Zane, I have a f-350 super dutie v-10,4x4 extra cab four door long bed. I keep Big foot slide in camper weighing 3000lbs dry on it at all times. I make numerous trips down to Cabo San Lucas From the San Diego area. I have had the springs rebuilt and added air bags. The truck carries the weight well but suffers ocilation on uneven and crowned roads in Mexico. Would dual tires in the back greatly improve the handling of this camper or should I be focusing on some kind of improve shocks to dampen the ocilation?

Zane.