Should front drive shaft turn while not in 4 wheel drive in a 2003 ford ranger?

In a 2003 Ford Ranger, the front drive shaft should not turn while in 2WD mode. The transfer case disengages the front drive shaft from the drivetrain when the vehicle is in 2WD, allowing power to be sent only to the rear wheels. If the front drive shaft is turning in 2WD, it may indicate a malfunction in the transfer case or related components.