NHTSA Complaint #761584 — 1993 GMC SIERRA

TIRE DEVELOPED A LARGE EGG SHAPED BUBBLE ON RIGHT, OUTSIDE HALF OF TREAD AREA. NOT ON SIDEWALL BUT DIRECTLY ON THE THREAD. THE VEHICLE STARTED TO ROCK VIOLENTLY FROM SIDE TO SIDE CAUSING THE RIGHT FRONT END TO DIP AND RISE RAPIDLY. I STOPPED IMMEDIATELY AND OBSERVED THIS BUBBLE. I DROVE THE REST OF THE WAY HOME, APPROXIMATELY 2 MILES. AT 10 MPH. WHEN I ARIVED HOME THE TIRE THEN DEFLATED BUT IT DID NOT BURST. THE TIRE IS FLAT BUT INTACT. IS THIS A TIRE YOU WOULD BE INTERESTED IN TESTING OR CHECKING OUT? PLEASE ADVISE. I CAN SEE FROM MY EXPERIENCE HOW THE CAR COULD OVER TURN DUE TO THIS INCREASING VIOLENT RISING AND DIPPING OF THE FRONT END. IF THIS OCCURRED ON A DIP AND THE BRAKES WERE APPLIED I BELIEVE IT WOULD CAUSE THE VEHICLE TO ROLL OVER VERY QUICKLY. THANKS JOHN. *AK