Reported Dec 29, 1997103 vehicles affectedMACK TRUCKS, INCORPORATEDBuilt Feb 15, 1996 – Nov 30, 1996
The defect
Vehicle description: heavy duty trucks equipped with design level 1, rockwell ff980 series front axle. the front axle hub flange can develop cracks due to high stress levels.
The risk
Cracks in a hub flange can result in a wheel separation.
The remedy
Dealers will remove and replace the front hubs with an improved design level 2 hub.
Owner notification began march 3, 1998.owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1-610-709-3011.also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.