SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:WHEEL CYLINDERS
Oct 17, 1977
636 units potentially affected
The defect: THE REAR BRAKE WHEEL CYLINDER RETAINER ON THE INVOLVED VEHICLES MAY NOT HAVE BEEN PROPERLY INSTALLED. SHOULD THE WHEEL CYLINDER RETAINER BECOME COMPLETELY DISENGAGED, THE WHEEL CYLINDER COULD MOVE OUTBOARD CAUSING A LOSS OF BRAKE FLUID AND A LOSS OF REAR BRAKING ACTION.
The remedy: THE DEALER WILL REPOSITION THE REAR WHEEL BRAKE CYLINDER RETAINERS, FREE OF CHARGE, ON ALL AFFECTED VEHICLES.
GENERAL MOTORS CORP.View on NHTSA.gov