I can't let this one go. My 97 Ram 2500 CTD was rated to tow 16,000 lbs GCWR. The truck weighed nearly 7500 lbs. A minivan can't have a GCWR high enough to tow a 3500 lb camper legally. I'd guess a 23 foot camper weighs around 4000 lbs. If the tongue weight is 400 lbs, the mini van is over loaded, and in my book, the driver is performing an unsafe act by endangering the rest of us on the road. You can't increase the GAWR or the GVWR or the GCWR by installing higher load rated tires. My 2003 DRW truck was rated at 21,000 lbs GCWR. I overloaded it according to Dodge because my trailer and truck weighed nearly 22K lbs combined. But I was less than 5% over my GCWR and I was under on the factory ratings for all axles and tires. I was pulling with a 3.73 rear end ratio truck. I still have a hard time understanding how a different ratio adds weight hauling capacity to the truck, but I do understand how Dodge is acting to limit corporate liability and thus is imposing limits. I sure hope the guy towing in that mini van doesn't have a deer jump out in front of him or the camper will flatten the mini van. Just my $0.02. Ken Irwin