The issue
TRUCKS EQUIPPED WITH MACK SH34 OR SH38 BOGIE SUSPENSIONS. THE BEAM HANGER BRACKETS MADE BY SUPERIOR STEEL CASTINGS HAVE LOW MECHANICAL PROPERTIES AND EXCESSIVE SHRINKAGE. FAILURE OF ONE OR MORE OF THESE BRACKETS COULD ALLOW THE AXLE HOUSING TO SEPARATE FROM THE SUSPENSION CAUSING 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 DMM | 1978 |
| Mack F | 1978 |
| Mack MB | 1978 |
| Mack R | 1978 |
| Mack RD | 1978 |