DRIVING 55-60MPH WHEN LARGE TRUCK IN FRONT, WITH NO TAILGATE, LOST AN AXLE IT WAS CARRYING AS PART OF A LOAD. IT ROLLED OFF THE TRUCK & STRUCK THE VEHICLE IN FRONT. AIR BAGS FAILED TO DEPLOY. VEHICLE RAN OVER AXLE, AND WAS SEVERELY DAMAGED. DRIVER SUFFERED NERVE DAMAGE TO NECK AND SHOULDER. *AK *ML