WHILE TRAVELING ON ARIZONA STATE HWY 87 NORTH FROM PAYSON AS ENTERING INTO PINE ARIZONA I STRUCK A LARGE TRUCK FROM REAR. THIS CAUSED SIGNIFICANT DAMAGE TO THE DRIVER SIDE OF THE TRUCK ACTUALLY BREAKING THE FRAME, PUSHING THE FRAME THRU THE BUMPER AND REQUIRING THE FIRE DEPARTMENT TO UTILIZE THE JAWS OF LIVE AND RELEASING THE STEERING WHEN FROM MY CHEST. INJURIES INCLUDED SKULL FRACTURE, BROKEN FEMUR, CHEST AND HEART CONTUSION. AIRLIFTED TO NEAREST HOSPITAL. LATER FOUND THAT THE INSIDE OF THE STEERING WHEEL APPEARED TO BE POPPED OFF AND WAS HANGING BY A CABLE YET AN AIRBAG WAS NOT PRESENT. TRYING TO FIND OUT IF THE TRUCK WAS ORIGINAL WITH AN AIRBAG. IT WAS A GOVERNMENT STATE OF ARIZONA VEHICLE. *TR