Over at allpar.com they are saying this:
"The Dodge Ram Heavy Duty pickups (Ram 2500 and Ram 3500) will appear in calendar-year 2009 for the 2010 model year. The Dodge Ram Chassis Cabs will have a short 2010 model year and will all be built within calendar-year 2009; 2011 models will have the new styling and interiors, and will be built starting in March 2010. "
AND THIS
"Cummins is recalling 400 workers to build engines for the Dodge Ram pickups, and stated that it had a commitment from Dodge for the future as well. Dodge will finish producing 2009 model-year trucks, then shut down for the transition to the 2010 model-year heavy duty pickups; it will also make the diesel-only class 4 and 5 chassis cabs briefly, before switching over in March 2010 to the revised 2011 class 4 and 5 chassis cabs. Most of Dodge's pickups, outside of the gas-only Ram 1500, are Cummins diesel-powered. "
SHG