THE ANTI-LOCK BRAKES FAILED THE FIRST TIME ON A BRIGHT SUNNY DRY DAY , I WAS UNABLE TO BRING MY SUBURBAN TO A STOP WITH PLENTY OF DISTANCE BETWEEN ME AND THE VEHICLE IN FRONT OF ME. I WAS CITED FOR UNASSURED CLEAR DISTANCE SINCE NO SKID MARKS OR OTHER EXPLANATION COULD BE GIVEN AT THE TIME. WE HAVE HAD SEVERAL INCIDENTS AND CLOSE CALLS SINCE THE FIRST ACCIDENT. WE HAVE NOT HAD THE ANTI-LOCK SYSTEM REPLACED AND WERE UNAWARE THAT THE UNIT MIGHT CAUSE PROBLEMS UNTIL WE RECENTLY SAW THE RECALL WHICH EXPLAINS PERFECTLY THE TYPE OF INCIDENTS WE HAVE HAD TO TRY TO STOP THE VEHICLE. WE DEFINATELY WANT THE NHTSA TO INVESTIGATE FURTHER TO PURSUE THE ANTI-LOCK RECALL ON THE 1993 SUBURBANS. THE TRANSMISSION FAILURE WAS JUST AFTER THE WARRANTY PERIOD EXPIRED. I COMPLAINED BITTERLY TO GM CUSTOMER SERVICE AND ALL BUT $350 WAS COVERED IN THE REPLACEMENT OF THE ORIGINAL TRANSMISSION. THE FAILURE OCCURRED WITH THE GEARSHIFT IN THE OVERDRIVE POSITION. THE TRANSMISSION COULD NOT MAINTAIN A LOCK IN THE OVERDRIVE POSITION AND WOULD CONSTANTLY SHIFT BACK AND FORTH BETWEEN 3RD AND OVERDRIVE GEAR.