WHEN I COLLIDED WITH A FORD TRUCK ALL MY AIR BAGS DEPLOYED AS THEY SHOULD, I COULD NOT MOVE WITHOUT INTENSE PAIN IN MY LOWER BACK SO I SAT IN PLACE UNTIL REMOVED BY EMS. AFTER PARTIAL RECOVERY I EXAMINED THE VEHICLE AND SAW THAT THE SEAT BELT ANCHOR BOLT OVER MY SHOULDER HAD BULLED OUT OF THE PILLAR BEHIND MY SEAT (NOT THE FLOOR). I WAS ON A CITY STREET MOVING AT ABOUT 45 MPH. A TRUCK TURNED IN FRONT OF ME AND WE COLLIDED HEAD TO HEAD. DAMAGE ON MY VEHICLE WAS PRIMARILY ON THE FRONT DRIVERS SIDE.