The issue
TWO SET SCREWS THAT ARE PART OF THE UPPER STEERING SHAFT BEARING ASSEMBLY LOCATED AT THE CAB DASH SHEET MAY NOT HAVE BEEN ADEQUATELY TIGHTENED AND MAY ALLOW UPPER STEERING SHAFT MOVEMENT. THIS CONDITION CAN RESULT IN INADEQUATE ENGAGEMENT IN THE SPLINES OF THE LOWER STEERING SHAFT. DURING FRONT AXLE ARTICULATION, THE LOWER STEERING SHAFT CAN DISENGAGE RESULTING IN A LOSS OF STEERING CONTROL WITHOUT PRIOR WARNING.
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 RWL | 1977, 1978, 1979 |
| Mack RWS | 1977, 1978, 1979 |