Rear end spring capacities under your camper & towing?

Everything just depends on how the truck sits onto it's springs when you are fully loaded. Airbags only level the truck, but if the springs are bent flat, it is too much for the springs. If they are not.. then are you within your tires and overall combined weight capacities?

Your towed vehicle will add a lot of weight to the rear end of the truck, and in 1997 even dual rear wheel pickups were not as highly rated as now. How big is the Lance, and what kind of hitching apparatus are you using?