CHRYSLER issued a recall on the 4500, and 5500 models

On certain four-wheel drive vehicles, due to insufficient welding of the front differential housing to the axle tubes, the housing may rotate relative to the axle tubes while the vehicle is operated in four wheel drive. This could allow the front driveshaft to bind up and fracture, causing a loss of motive power and damage to surrounding components if the driveshaft continues to spin. This could increase the risk of a crash causing personal injury and/or damage to property. Correction: dealers will repair or replace the front axle assembly on affected vehicles.