1972–1973 Mack Fs Recall

TRUCKS EQUIPPED WITH ROCKWELL INTERNATIONAL FF921 FRONT AXLES AND CAST ALUMINUM WHEEL HUBS. THERE IS A POSSIBILITY OF CRACKING IN THE AREA OF THE WHEEL MOUNMTING FLANGE AND/OR INNER BEARING BARREL SECTION ON CERTAIN ROCKWELL CAST ALUMINUM WHEELS (CASTING NO. 333-A-911). EITHER DEFECT CAN CAUSE THE WHEEL AND TIRE TO SEPARATE FROM THE VEHICLE CAUSING A LOSS OF VEHICLE CONTROL.

MACK FS