NHTSA Recall 83V102000
Filed by Mack Trucks, Inc.. Component: Power Train. Reported 1983-09-27. An estimated 565 vehicles are affected. Recall repairs are free at any authorized dealer.
Defect
THE YOKE OF THE TRANSMISSION PROPELLER SHAFT MAY LACK REQUIRED STRENGTH DUE TO ERRONEOUS COUNTERBORE OPERATION IN WHICH 10 MILLIMETERS OF EXTRA MATERIAL MAY HAVE BEEN CUT. THIS CONDITION COULD LEAD TO FRACTURE OF THE YOKE IN SERVICE.
What the manufacturer will do
ALL AFFECTED PARTS WILL BE INSPECTED AND REPLACED, IF NECESSARY.
Notes
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: POWER TRAIN; TRANSMISSION PROPELLER SHAFT YOKE.CONSEQUENCES OF DEFECT: DURING ENGINE OPERATION AT HEAVY THROTTLE, AS INVEHCILE STARTING, FRAGMENTS OF A FRACTURED YOKE COULD BE PROPELLED OUTWARD ANDCAUSE INJURY TO NEARBY PERSONS.NOTE: THE FRACTURE COULD ALSO OCCUR WITHOUT WARNING DURING NORMAL HIGHWAYOPERATION, RESULTING IN LOSS OF POWER AT THE DRIVING WHEELS, DIFFICULTY INMAINTAINING VEHICLE CONTROL, AND A POSSIBLE ACCIDENT.