The issue
TRUCKS EQUIPPED WITH POWER STEERING. A DEFICIENCY EXISTS IN THE PITMAN ARM CAUSED BY VENDOR AND MACK PART NUMBERS CAST INTO THE ARM. THE CAST NUMBERS CAUSE A STRESS CONCENTRATION THAT COULD LEAD TO A PITMAN ARM FAILURE CAUSING A LOSS OF VEHICLE CONTROL WITHOUT PRIOR WARNING TO THE OPERATOR.
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged
Vehicles covered
| Make and model | Model years |
|---|---|
| Mack HMM6856S | 1973, 1974, 1975, 1976, 1977 |