2006 windshield wiper problem

Anybody having trouble with wipers chattering real bad in heavy rain? Truck has 2500 miles on it. It is a 3500 duramax dually crewcab

Sounds like it is time for a new set of wipers. It does not matter much that you only have 2500 miles on it, it matters how long the truck has been sitting in the sun. The rubber the wipers are made of dry out over time and get hard and that is why they chatter like that.