United States 96V240000
INTERNATIONAL TRUCK & ENGINE CORPORATION
The problem
VEHICLE DESCRIPTION: SCHOOL BUSES AND HEAVY DUTY TRUCKS EQUIPPED WITH REAR AXLE ASSEMBLIES PRODUCED BY DANA SPICER. CERTAIN REAR AXLE ASSEMBLIES WERE IMPROPERLY HEAT TREATED WHICH COULD ALLOW PINION BREAKAGE AT THE PINION THREADS.
Risk
CRACKS CAN INITIATE AND RESULT IN SEPARATION OF THE THREADED END OF THE PINION RESULTING IN SEPARATION OF THE YOKE AND DRIVE LINE FROM THE REAR AXLE INCREASING THE RISK OF A VEHICLE ACCIDENT.
What owners should do
DEALERS WILL REPLACE THE REAR AXLE CARRIER/PINION ASSEMBLY.
Units 233