SERVICE BRAKES, AIR:DRUM:CHAMBER
Aug 3, 1987
7,870 units potentially affected
The defect: SEVERE BRAKE CHATTER MAY CAUSE THE BRAKE CHAMBER MOUNTING BRACKETS ON EITHER SIDE TO DEVELOP CRACKS IN THE WELD AREA WHERE THE S CAM SHAFT TUBE ATTACHES TO THE CHAMBER SUPPORT SECTION.
The risk: BRACKETS CAN BREAK, RESULTING IN LOSS OF BRAKING ABILITYAT THAT FRONT WHEEL, AND POSSIBLY RESTRICTED STEERING, WHICH COULD LEAD TO AVEHICLE CRASH WITHOUT PRIOR WARNING.
The remedy: AS NECESSARY, INSTALL NEW REINFORCED FRONT BRAKE CHAMBER MOUNTING BRACKETS AND INSTALL A FRONT BRAKE LIMITING VALVE ON VEHICLES WITHOUT ONE.
GENERAL MOTORS CORP.View on NHTSA.gov