The issue
VEHICLES EQUIPPED WITH SWTL56, SW56 OR SW57 SERIES BOGIES (TANDEM AXLES). THE WELDS SECURING THE REAR AXLE SPRING INSULATOR BRACKET TO THE AXLE HOUSING ARE IMPROPERLY POSITIONED AND COULD BREAK CAUSING THE AXLE TO MOVE OUT OF POSITION RESULTING IN A LOSS OF VEHICLE 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 DM | 1977 |
| Mack F | 1977 |
| Mack HMM | 1977 |
| Mack MB | 1977 |
| Mack R | 1977 |
| Mack RD | 1977 |
| Mack RL | 1977 |
| Mack RM | 1977 |
| Mack RS | 1977 |
| Mack U | 1977 |
| Mack WL | 1977 |
| Mack WS | 1977 |