The issue
TRUCKS EQUIPPED WITH MANUAL STEERING. SUBJECT VEHICLES MAY HAVE BEEN BUILT WITH PITMAN ARM RETAINING NUTS THAT WERE NOT TORQUED TO SPECIFICATION. THIS CONDITION COULD RESULT IN INADEQUATE RETENTION OF THE NUT TO THE OUTPUT SHAFT ALLOWING THE PITMAN ARM TO COME LOOSE. IF THIS CONDITION IS NOT CORRECTED, THE SPLINED GROOVES ON THE OUTPUT SHAFT COULD WEAR SMOOTH CAUSING A LOSS OF STEERING CONTROL.
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 |
| Mack WL | 1977, 1978, 1979 |
| Mack WS | 1977, 1978, 1979 |