Springs replaced and on the level again! To answer the questions, TT has not been overloaded (and yes it doesn't take much to do so), there is more weight on that side - kitchen, furnace, water heater etc clean water. Black & grey tanks are across the rear. Water tanks are empty when traveling. I would hope the designers would account for this. Tires, balanced, no issues/undo wear noted. Travel speed 95 - 100 kms/hr. Towed easily. We're retired, no more hurry! Dealership would make no comment about this. Just replaced it under warranty, no cost to me. Legalities? Taking a trip today and will see how it all goes. We have enjoyed this unit, small but just right for two.