The issue
TRUCKS WITH MACK SW57,SW76,S38,OR S44 TANDEM AXLES. A CASTING DEFECT IN THE BOGIE SPRING INSULATOR CAP CAN ALLOW THE END OF THE REAR SPRING TO DETACH FROM THE AXLE HOUSING RESULTING IN 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, 1978 |
| Mack R | 1977, 1978 |
| Mack RD | 1977, 1978 |
| Mack U | 1977, 1978 |