OFFICIAL NHTSA RECALL
79V182000
Parking Brake:driveline
Reported Aug 3, 1979 · GRUMMAN FLXIBLE CORP.
Summary
PARKING BRAKES ON THE INVOLVED VEHICLES MAY NOT RELEASE OR RELEASE COMPLETELY. THIS COULD LEAD TO ABNORMAL HEATING OF THE ROCKWELL PARKING BRAKE DRUM DURING VEHICLE OPERATION. THIS MAY CAUSE BURNING OR THERMAL CRACKING OF THE DRUM SURFACE. THE WEAKENED DRUM THEN BECOMES SUBJECT TO FAILURE UNDER THE CENTRIFUGAL FORCES OF THE PROPSHAFT ROTATION WHICH PULL THE DRUM OUTWARDS WHEN IT IS ROTATING RAPIDLY AROUND THE PROPSHAFT CENTER.
Consequence
Not supplied in the source record.
Remedy
THE DEALER WILL REPLACE THE EXISTING BRAKE DRUM WITH ROCKWELL PART #3219-H-4350, WITHOUT CHARGE TO OWNER.
Notes
VEHICLE DESCRIPTION: BUSES.SYSTEM: SERVICE BRAKES; PARKING BRAKE, DRUM.CONSEQUENCES OF DEFECT: IF SUCH A FAILURE OCCURS WHEN THE PROPSHAFT ISOPERATING, THE DRUM CAN DISINTEGRATE WITH AN EXPLOSIVE FORCE. THIS COULD CAUSELOSS OF VEHICLE CONTROL AND AN ACCIDENT.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗