2005 DODGE 3500 EXTENDED CAB 4X4, I STOPPED WITH A PASSENGER IN TRUCK ON LEVEL GROUND AND PLACED IT IN PARK W/ENGINE RUNNING. THEN, I REMOVED MY SEAT BELT AND EXITED THE TRUCK. I WALKED ABOUT 10 YARDS AWAY AND STARTED TO TALK TO A NEIGHBOR. I HEARD THE PASSENGER YELL THAT THE TRUCK WAS ROLLING. I TURNED AND RAN TO THE TRUCK AS THE PASSENGER TRIED TO EXIT THE TRUCK, BUT THE SHOULDER HARNESS TANGLED AROUND HER ARM, AND THE TRUCK WAS ROLLING IN REVERSE. THE DOOR KNOCKED HER OFF HER FEET BUT SHE WAS STILL CAUGHT BY THE SHOULDER HARNESS, AND WAS BEING DRAGGED AS THE TRUCK CONTINUED TO ROLL BACKWARDS. I CAUGHT UP TO THE TRUCK AND DOVE IN THE OPEN PASSENGER DOOR AT THE SAME TIME THAT SHE ROLLED UNDER THE CAB. I GOT MY HAND ON THE BRAKE AND THE TRUCK CAME TO A STOP, BUT THE FRONT WHEEL ROLLED ONTO HER HIP AND THIGH. I PUT THE TRUCK IN DRIVE, IT HAD DROPPED INTO REVERSE FROM PARK, PULLING IT FORWARD, AND SHE ROLLED FREE. SHE WENT BY AMBULANCE TO THE HOSPITAL AND WAS LATER RELEASED. *AK