My 2010 Raptor Velocity 3812TS Toy - hauler has very weak floor support in the main living area, near the floor heat vent. Each time that someone steps
in that area, the floor gives way dramatically enough that your first thought is that it is going to give way you.
Upon investigation, I discovered that Keystone had used a skill-saw type saw
to cut the heat duct opening. This caused all four corners to weaken. When I showed this to the dealer, his only answer was that there was nothing that he or Keystone would do about the problem.
Does anyone have any ideas about how I can fix this short of replacing the entire floor.